Dataset Viewer
question
string | choices
sequence | answer
string | rationale
string | dataset
string |
|---|---|---|---|---|
Sam invested Rs. 15000 @ 10% per annum for one year. If the interest is compounded half-yearly, then the amount received by Sam at the end of the year will be? | [
"Rs.16,537.50",
"Rs.16,537.21",
"Rs.16,537.52",
"Rs.16,537.22"
]
| A | P = Rs. 15000; R = 10% p.a. = 5% per half-year; T = 1 year = 2 half-year
Amount = [15000 * (1 + 5/100)2]
= (15000 * 21/20 * 21/20)
= Rs. 16537.50 | aqua_rat |
The length of a side of a hexagon is 5 inches. What is the perimeter? | [
"116",
"24",
"30",
"15"
]
| C | Hexagon. It means 6 equal sides.
p = 5 + 5 + 5 + 5 + 5 + 5 = 10+ 10 + 10 = 30 inches | aqua_rat |
Light entering the eye passes through which retinal layer first? | [
"Outer plexiform layer",
"Inner nuclear layer",
"Outer nuclear layer",
"Retinal ganglion layer"
]
| D | The most anterior layer of the retina, through which light passes first, is the retinal ganglion layer. Light then passes through the other cell layers of the retina until it reaches the photoreceptors in the posterior region of the retina. Visual processing/Phototransduction occurs in the opposite direction(Photoreceptors- ganglion cell layer) | medmcqa |
Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 1.25 km respectively. The time taken by the slower train to cross the faster train in seconds is? | [
"77",
"54",
"12",
"11"
]
| B | Relative speed = 60 + 90 = 150 km/hr.
= 150 * 5/18 = 125/3 m/sec.
Distance covered = 1.10 + 1.25 = 2 km = 2250 m.
Required time = 2250 * 3/125 = 54 sec. | aqua_rat |
Robert left from a Pvt Company. Management hold his salary Rs. 15000/- for one month. Earlier Robert borrowed Rs. 7280/- from company. But Robert forget that. After one month Robert asked his salary and accountant gives Rs.18500/- to him. What is the incentive amount given to Robert? | [
"8600",
"10500",
"10780",
"12500"
]
| C | Total Salary = Rs.15000/-
Borrowed Money = 7280/-
Balance Salary = 15000-7280= 7720
Paid amount = 18500/-
Incentive amount = 18500-7720 = 10780/- | aqua_rat |
If logn48 = a and logn108 = b. What is the value of logn1296 in terms of a and b? | [
"None of these",
"2(a + 3b)/5",
"2(2a + b)/5",
"(a + 3b)/5"
]
| B | Given logn48 = 4logn2 + logn3 = a and
logn108 = 2.logn2 + 3logn3 = b
Let logn 2 = X and logn3 = Y.
=> 4X + Y = a
2X +3Y = b.
2 x (ii) - (i) gives
6Y - Y = 2b - a
Y = (2b - a)/5
Similarly, X = (3a - b)/10.
logn1296 = 4(logn2 + logn3).
= 4[(2b - a)/5 + (3a - b)/10].
= 4[(a + 3b)/10] = 2(a + 3b)/5. | aqua_rat |
All of the bonds on a certain exchange are designated by a 3-letter, a 4-letter, or a 5-letter code that is created by using the 26 letters of the alphabet. Which of the following gives the maximum number of different bonds that can be designate with these codes? | [
"26(26^3 + 26^4)",
"26(26^3 + 26^5)",
"27(26^3) + 26^5",
"27(26^3 + 26^5)"
]
| C | 3-letter codes = 26^3;
4-letter codes = 26^4;
5-letter codes = 26^5;
Total = 26^3 + 26^4 + 26^5 = 26^3(1+26) + 26^5 = 26^3*27 + 26^5. | aqua_rat |
What is the thin coat of phospholipids that surrounds the cell and controls what enters and leaves? | [
"cell membrane",
"plasma",
"blood",
"myelin"
]
| A | The cell membrane is a thin coat of phospholipids that surrounds the cell. It’s like the “skin” of the cell. It forms a physical boundary between the contents of the cell and the environment outside the cell. It also controls what enters and leaves the cell. The cell membrane is sometimes called the plasma membrane. | sciq |
A train crosses a platform of 150 m in 15 sec, same train crosses another platform of length 200 m in 18 sec. then find the speed of the train? | [
"55/3 m/sec",
"40/3 m/sec",
"50/3 m/sec",
"41/3 m/sec"
]
| C | Length of the train be ‘X’
(X + 150)/15 = (X + 200)/18
6X + 900 = 5X + 1000
X = 100m
Speed = (100+150)/15 = 50/3 m/sec | aqua_rat |
A 32-year-old female presents with pain in the right lower iliac fossa. Rebound tenderness is positive in this patient. She was diagnosed with appendicitis and was operated under general anesthesia. Postoperative lab findings showed increased levels of transaminases with the absence of increased bilirubin. Which of the following agent is most likely responsible for the elevation of the enzymes? | [
"Halothane",
"Methoxyflurane",
"Enflurane",
"Nitrous oxide"
]
| A | HalothaneHalothane is responsible for the increase in the serum transaminases postoperatively in this case. There are two types of hepatotoxicity associated with halothane administration.Type IType II* Benign, self-limiting, and common.* Transaminases levels are mildly increased, without evidence of jaundice.* This is due to reductive biotransformation of halothane.* It is fulminant and rare.* It is immune-mediated.* Associated with centrilobular liver necrosis.* Clinically, it presents with fever, jaundice, and grossly elevated serum transaminase levels.* Has significant mortality rate. | medmcqa |
What forms as a result of decomposition when n2o is heated? | [
"nitrogen and hydrogen",
"ammonia and nitrogren",
"nitrogen and oxygen",
"calcium and oxygen"
]
| C | The oxides of nitrogen(III), nitrogen(IV), and nitrogen(V) react with water and form nitrogen-containing oxyacids. Nitrogen(III) oxide, N2O3, is the anhydride of nitrous acid; HNO2 forms when N2O3 reacts with water. There are no stable oxyacids containing nitrogen with an oxidation state of 4+; therefore, nitrogen(IV) oxide, NO2, disproportionates in one of two ways when it reacts with water. In cold water, a mixture of HNO2 and HNO3 forms. At higher temperatures, HNO3 and NO will form. Nitrogen(V) oxide, N2O5, is the anhydride of nitric acid; HNO3 is produced when N2O5 reacts with water: N 2 O 5(s) + H 2 O(l) ⟶ 2HNO 3(aq) The nitrogen oxides exhibit extensive oxidation-reduction behavior. Nitrous oxide resembles oxygen in its behavior when heated with combustible substances. N2O is a strong oxidizing agent that decomposes when heated to form nitrogen and oxygen. Because one-third of the gas liberated is oxygen, nitrous oxide supports combustion better than air (one-fifth oxygen). A glowing splinter bursts into flame when thrust into a bottle of this gas. Nitric oxide acts both as an oxidizing agent and as a reducing agent. For example: oxidizing agent: P 4(s) + 6NO(g) ⟶ P 4 O 6(s) + 3N 2(g). | sciq |
An express traveled at an average speed of 100 km/hr, stopping for 4 min after every 75 km. How long did it take to reach its destination 300 km from the starting point ? | [
"6 hrs 28 min",
"1 hrs 28 min",
"6 hrs 28 min",
"3 hrs 12 min"
]
| D | Time taken to cover 300 km = 300/100 = 3 hrs.
Number of stoppages = 300/75 - 1 = 3
Total time of stoppages = 4 x 3 = 12 min
Hence, total time taken = 3 hrs 12 min. | aqua_rat |
The pharmacokinetic propeies of a new antihistamine are being studied in normal volunteers during phase I clinical trials. The clearance and half-life of the drug are determined to be 4.0 L/hour and 10 hours, respectively. Which of the following values is the approximate volume of distribution for this drug? | [
"0.06 L",
"14 L",
"45 L",
"60 L"
]
| D | The volume of distribution of a drug can be determined using the following equation: t1/2 = (0.693 x Vd)/CL Therefore, 10 hours = (0.693 x Vd)/(4.0 L/hour), 40 hours = 0.693 x Vd, Vd = 58 L which is approximately 60 L. | medmcqa |
A cube of side 5 cm is painted on all its side. If it is sliced into 1 cubic centimer cubes, how many 1 cubic centimeter cubes will have exactly one of their sides painted? | [
"98",
"9",
"54",
"64"
]
| C | anatory Answer
When a 5 cc cube is sliced into 1 cc cubes, we will get 5 * 5 * 5 = 125 cubes of 1 cubic centimeter.
In each side of the larger cube, the smaller cubes on the edges will have more than one of their sides painted.
Therefore, the cubes which are not on the edge of the larger cube and that lie on the facing sides of the larger cube will have exactly one side painted.
In each face of the larger cube, there will be 5 * 5 = 25 cubes.
Of these, the cubes on the outer rows will be on the edge. 16 such cubes exist on each face.
If we count out the two outer rows on either side of a face of the cube, we will be left with 3 * 3 = 9 cubes which are not on the edge in each face of the cube.
Therefore, there will be 9 cubes of 1-cc volume per face that will have exactly one of their sides painted.
In total, there will be 9 * 6 = 54 such cubes. | aqua_rat |
At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present? | [
"15 years",
"66 years",
"88 years",
"77 years"
]
| A | Let the present ages of Arun and Deepak be 4x and 3x years respectively.
Then, 4x + 6 = 26 => x = 5
Deepak's age = 3x = 15 years. | aqua_rat |
In a kickball competition of 11 teams, how many possible matches can each team play with each other? | [
"16",
"55",
"36",
"9"
]
| B | 11C2 = 55 | aqua_rat |
Four of the five parts numbered (a) ,(b) ,(c) (d) and (e) in the following equation are exactly equal. Which of the parts is not equal to the other four? The number of that part is the answer. | [
"(a + b)(a – b) + (2a2 – ab + 4b2)",
"2a2 – ab + 3b2",
"(a – b)2 + (a2 + ab + 2b2)",
"(a + b)2 + (a2 + 2b2 – 3ab)"
]
| A | The other parts are equal to 34. | aqua_rat |
Extramammary Paget's disease is seen in:- | [
"Uterus",
"Vulva",
"Ovary",
"Vagina"
]
| B | Paget's disease - In extramammary involvement commonest site affected (vulva) - Presence of pruritis/red /crusted lesion/map like area usually on labia majora - Not associated with malignancy A. Epidermis is infiltrated by large cells With pale pink cytoplasm spreading along basal surface of squamous epithelium B. Immuno staining for cytokeratin7 highlights the intraepidermal paget cells | medmcqa |
A soft drink company had 5000 small and 12000 big bottles in storage. If 15% of small 18% of big bottles have been sold, then the total bottles remaining in storage is | [
"16010",
"14090",
"14930",
"15060"
]
| B | 5000 + 12000 - (0.15*5000 + 0.18*12000) = 14090. | aqua_rat |
Which of the following is the most important stimulus for the secretion of bile: | [
"Secretin",
"CCK",
"Bile salts",
"Bile acid"
]
| C | Bile saltsCholagoguesCholereticsSubstances that cause contraction of gall bladder (CCK)Substances that increase the secretion of bile (bile salts are most potent) | medmcqa |
Calculate the average mark scored by Andrea if he had the following scores in an examination: 66, 60, 72, 77, 55 and 85 marks (out of 100) in English, Mathematics, Chemistry, Biology, French Language and Physics respectively? | [
"70",
"67",
"69.2",
"74"
]
| C | Average mark = 66+60+72+77+55+85/6=69.2 | aqua_rat |
How many digits are in the number 50^8 × 8^3 × 11^2 x 10^4? | [
"17",
"22",
"19",
"18"
]
| D | Whenever you are asked to find the number of digits, try to bring the number in multiples of 10. This way, we can wasily calculate the umber of 0's through the powers of 10
50^8 × 8^3 × 11^2 x 10^4 = (5^2*2)^8*2^9*11^2 *10^4= 5^16*2^17*11^2*10^4 = 2*11^2*10^16*10^4 = 242*10^16 x 10^4
Hence we would have 16 trailing 0's and the three digits from 242
Total digits = 3 + 20 = 23 | aqua_rat |
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that atleast one bulb is good. | [
"1/63",
"2/63",
"1/126",
"125/126"
]
| D | Required probability = 1 - 1/126 = 125/126 | aqua_rat |
The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have a one-year old child. The average age of the family now is : | [
"11",
"27",
"19",
"18"
]
| C | Sum of the present ages of husband, wife and child = (23 * 2 + 5 * 2) + 1 = 57 years.
Required average = (57/3) = 19 years. | aqua_rat |
Phagocytosis is the function of- | [
"Astrocytes",
"Oligodendrocytes",
"Microglia",
"Schawan cells"
]
| C | Microglia o Micro-organisms entering the tissue fluid or blood stream are very rapidly engulfed by the cells called phagocytes,o Phagocytic cells are of two types :o Basophils also belong to polymorphonuclear microphages but they are not phagocytes.o Eosinophils have only a limited degree of phagocytic activity. | medmcqa |
In a class of 300 students, 100 study Spanish and 100 study French. If a student must study at least one of these two languages, what percent of the students study French but NOT Spanish? | [
"70%",
"20%",
"67%",
"10%"
]
| C | No of students study french= 300- No of students study spanish = 300-100=200
% of the students study french but not spanish = (200/300)*100 % = 67 % | aqua_rat |
Root value of axillary nerve is | [
"C7 C8",
"C8 T1",
"C5 C6 C7 C8 T1",
"C5 C6"
]
| D | AXILLARY NERVE:-Root value: C5, C6Arises from the posterior cord of brachial plexus, near lower border of the subscapularis.Runs backward on Subscapularis to pass through quadrangular space along with posterior circumflex humeral aery.Here it is related to surgical neck of humerus.Nerve gives branch to shoulder joint and divide into anterior and posterior division.Anterior division:- teres minor and posterior pa of deltoid.Continues as upper lateral cutaneous nerve of arm and supplies skin over deltoid.Posterior division:-continues horizontally between deltoid and surgical neck of humerus along with posterior circumflex humeral vessels.supplies deltoid and few branches to innervate skin.Risk of damage in inferior dislocation of the head of humerus and fracture surgical neck humerus.Clinical presentation:-Impaired abduction of shoulder.Loss of sensation over lower half of deltoid- regimental badge area.Loss of shoulder contour with prominence of greater tubercle.{Reference:Vishram Singh, pg no. 78} | medmcqa |
A can do a piece of work in 4 days. B can do it in 5 days. With the assistance of C they completed the work in 2 days. Find in how many days can C alone do it? | [
"10 days",
"3 days",
"4 days",
"20 days"
]
| D | C = 1/2 - 1/4 - 1/5 = 1/20 => 20 days | aqua_rat |
Which of the following tendon is more likely to rupture during violent dorsiflexion of the foot ? | [
"EDL",
"Plantaris",
"EHL",
"FHL"
]
| B | Plantaris Plantaris is a feeble and rudimentary muscle having a long slender tendon, which can rupture during sudden dorsiflexion of ankle joint.Pain following rupture may be so severe that the person is unable to bear weight on foot.Plantaris tendon is commonly used in reconstructive surgery of tendons of hand | medmcqa |
The cytogenetics of chromophilic renal cell carcinoma is characterized by: | [
"Loss of 5q 3",
"Mutant VHL gene",
"Loss of 3p",
"Trisomy 7/17"
]
| D | Chromophilic renal cell cancer is the other name of papillary renal cell cancer because 80% of chromophilic renal cell cancers show a tubulopapillary architecture. Papillary cancer is associated with trisomy 7, 16, 17. | medmcqa |
there are 10 girls and 20 boys in a classroom. what is the ratio of girls to boys? | [
"10/30",
"1/2",
"1/3",
"2/5"
]
| B | If girls is 10 and boys is 20, then 10/20.
so ratio of girls to boys is = 10/20 = 1/2 | aqua_rat |
If (A+B) = 4, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)? | [
"16.",
"-2",
"8.",
"2."
]
| B | Given A+B = 4 => A = 4 - B --> Eq 1
B+C = 9
C+D = 3 => D = 3 - C --> Eq 2
Then Eqs 1 + 2 => A + D = 4 - B + 3 - C
=> 7 - (B+C)
=> 7 - 9 = -2. | aqua_rat |
A patient developed hemorrhagic blisters at the bite site following dog bite. Which is the most likely causative organism? | [
"Staphylococcus aureus",
"Capnocytophaga canimorsus",
"Pasteurella spp.",
"Pseudomonas spp."
]
| A | Staphylococcus aureusExplanationAmong animal bites, dog bites are most common, followed by cat bites.Approximately 15 to 20% of dog bite wounds and more than 50% of cat bite wounds become infected.For dog bite infections, Staphylococcus aureus and streptococcal species are the most commonly isolated pathogens, with Pasteurella and other organisms next in frequency.For cat bite infections, Pasteurella spp. are the most common pathogens.The zoonotic species Capnocytophaga canimorsus and C. cynodegmi are normal inhabitants of the oral cavity of dogs and cats. Zoonotic-associated infections arise via exogenous introduction of bacteria into wounds from penetrating traumas (dog bite) or by inapparent inoculation of bacilli into abraded surfaces or tissues via intimate contact with pets. | medmcqa |
When a predator kills and eats its prey, what sort of predation is this referred to as? | [
"just",
"true",
"false",
"predestined"
]
| B | True predation is when a predator kills and eats its prey. Some predators of this type, such as jaguars, kill large prey. They tear it apart and chew it before eating it. Others, like bottlenose dolphins or snakes, may eat their prey whole. In some cases, the prey dies in the mouth or the digestive system of the predator. Baleen whales, for example, eat millions of plankton at once. The prey is digested afterward. True predators may hunt actively for prey, or they may sit and wait for prey to get within striking distance. Certain traits enable organisms to be effective hunters. These include camouflage, speed, and heightened senses. These traits also enable certain prey to avoid predators. | sciq |
NARP is | [
"Lipid storage disorder",
"Glycogen storage disorder",
"Lysosomal storage disorder",
"Mitochondrial disorder"
]
| D | Neuropathy, Ataxia, Retinitis pigmentosa (NARP) syndrome is a rare disorder with mitochondrial inheritance pattern | medmcqa |
Which of the following drugs acts by increasing bone formation & inhibiting bone resorption | [
"Denosumab",
"Zoledronate",
"Strontium ranelate",
"Calcitonin"
]
| C | Strontium ranelate resembles calcium and incorporated into bone matrix and promotes bone formation. But osteoclasts can't remove it and thus inhibits bone resorption as well. | medmcqa |
The present ages of three persons are in the proportion of 4 : 7 : 9. Eight years ago, the sum of their ages was 96. Find their present ages. | [
"8,20,28",
"None of these",
"24,42,54",
"16,28,46"
]
| C | Let the present ages of three persons be 4K,7K and 9K respectively.
(4K - 8) + (7K - 8) + (9K - 8) = 96
20K = 120
K = 6
Therefore, then present ages are 24,42,54. | aqua_rat |
A patient of rheumatoid ahritis develops sudden onset quadriparesis, Babinsky sign was positive, increased muscle tone of limbs with exaggerated tendon jerks and worsening of gait with no sensory. sphincter involvement. Best initial investigation is | [
"EMG and NCV within 48 hours",
"MRI brain",
"X-ray of cervical area of neck in flexion and extension",
"Carotid angiography"
]
| C | X-ray of cervical area of neck in flexion and extension In patients of rheumatoid ahritis with compressive Myelopathy or neurological dysfunction investigation to be done next is X-ray of cervical area of neck in flexion and extension Neurological Involvement in Rheumatoid Ahritis Atlanto-axia linvolvement of cervical spine is clinically notewohy because of its potential to cause compressive Myelopathy and neurological dysfunctionQ Neurological manifestations are rarely a presenting sign or symptom of atlanto-axial disease, but they may evolve over time with progressive instability of Cl or C2Q It does not affect thoracic or lumbar spineQ Investigation: In patients of compressive Myelopathy or neurological dysfunction investigation to bedone next is X-ray of cervical area of neck in flexion and extensionQ | medmcqa |
CRISPR - Cas9 mediated gene editing involves which DNA repair mechanism | [
"Non Homologous End joining repair",
"Base excision repair",
"Nucleotide excision repair",
"Mismatch repair"
]
| A | CRISPR - Cas9 involves both homologous and non homologous end joining repair mechanism. | medmcqa |
Stepping in a lake causes | [
"tsunamis",
"ripples",
"typhoons",
"earthquakes"
]
| B | When you step into a lake, the disturbance in the water creates waves that spread outward from the point of impact, resulting in ripples. | openbookqa |
A tank is filled in 10 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank? | [
"70 hours",
"30 hours",
"50 hours",
"35 hours"
]
| A | 1/A + 1/B + 1/C = 1/10 ( a, b and c 1 hour work)
given.. 1/B= 2/A and 1/C = 2/B = 4/A
hence 1/A + 2/A + 4/A = 1/10
on solving.... we get 1/A = 1/70 ( work done by A in 1 hour)
therefore time taken by A is 70 hours to finish the whole work | aqua_rat |
The average of first ten prime numbers which are odd is? | [
"15.7",
"15.8",
"15.2",
"15.1"
]
| B | Sum of first 10 prime no. which are odd = 158
Average = 158/10 = 15.8 | aqua_rat |
There are three guys who have equal number of bullets. All of them shoot 8 bullets. The remaining bullets are equal to the total number of bullets remaining is equal to the bullets each had after division. What was the original number of bullets each one had? | [
"31",
"36",
"18",
"27"
]
| B | let initially each was having x bullets
they shot 8 bullets
so 3x-24=x
x=12
so each was having 12 bullets.
total was 36. | aqua_rat |
If circumflex aery gives the posterior interventricular branch, this circulation is described as ? | [
"Left dominance",
"Undetermined",
"Codominance",
"Right dominance"
]
| A | Dominance of the coronary aerial system depends on which aery gives rise to the posterior interventricular branch (posterior descending aery). This branch supplies adjacent areas of both ventricles and posterior third of the IV septum.Right dominance: In this more conzmon type the posterior interventricular aery is a brute of . coronary aery. Left dominance: The circumflex aery, the continuation of left coronary provides the post. IV branchCodominance/balanced: Branches of both right and left coronary aery run in or near the sulcus. | medmcqa |
The principal that amounts to Rs. 3913 in 3 years at 6 1/4 % per annum C.I. compounded annually, is? | [
"s. 4076",
"s. 4096",
"s. 3096",
"s. 5096"
]
| C | Principal = [4913 / (1 + 25/(4 * 100))3]
= 3913 * 16/17 * 16/17 * 16/17 = Rs. 3096. | aqua_rat |
A man buy a book in Rs50 & sale it Rs60. What is the rate of profit ??? | [
"28%",
"30%",
"10%",
"20%"
]
| D | cp=50
sp=60
profit=60-50=10
%=10/50*100=20% | aqua_rat |
Two numbers are in the ratio 1:2, if 7 is added to both, their ratio changes to 3:5. The greatest number is | [
"24",
"28",
"44",
"32"
]
| B | Let the numbers be x and 2x
Then, (x+7)/(2x+7)=3/5
X=14
There fore answer is 28 | aqua_rat |
Antibiotic of choice in cirrhotic patient to prevent encephalopathy: | [
"Neomycin",
"Metronidazole",
"Ampicillin",
"Rifaximin"
]
| D | Treatment of hepatic encephalopathy 1. Correct precipitating factors 2. Use lactulose- results in colonic acidification. 2. Poorly absorbed antibiotics- neomycin and metronidazole. More recently, rifaximin at 550 mg twice daily has been very effective in treating encephalopathy without the known side effects of neomycin or metronidazole. | medmcqa |
Which of the following is good prognostic factor for neuroblastoma? | [
"N-myc amplification",
"Loss of 11q",
"Triploidy",
"Diploidy"
]
| C | Triploidy Prognostic Factors in Neuroblastomas1) Good prognostic factors are age < 1 year, stage 1 and 2, Hyperdiploidy/ Triploidy, and Trk A expression, CD- 44 Expression2) Poor prognostic factors are age > 1 year; stage 3 and 4, Diploid, near-diploid or near-tetraploid N-myc amplification; deletion of chromosome 1 and 14; allelic loss of 11 q and 14 q; and gain of 17 q, TrK - B expression, MRP Expression, Telomerase Expression, elevated ferittin and LDH.Also remembero It is the most common malignancy of infancy, the most common abdominal cancer in children, and most common extracranial solid tumor of childhood.o Sites of involvement are adrenal medulla (most common), pelvis, cervical area (neck), posterior mediastinum, and paravertebral retroperitoneum. | medmcqa |
Not a side effect of cimitidine is | [
"Impotence",
"Atrophic gastritis",
"Gynaecomastia",
"Galactorrhea"
]
| B | Common side effects of Tagamet include: headache, dizziness, drowsiness, depression, agitation, breast swelling or tenderness (in men), joint or muscle pain, skin rash, | medmcqa |
Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is: | [
"180 gallons",
"80 gallons",
"100 gallons",
"120 gallons"
]
| D | Let the capacity of tank x gallons. then in 1 minute tank filled (x/20+x/24-3)gallons
From the question we can write
15(x/20+x/24-3)=x [it took 15 min to fill x gallons]
x/20+x/24-x/15=3
(6x+5x-8x)/120=3
3x/120=3
x=120 gallons | aqua_rat |
The division of a whole number N by 10 gives a quotient of 15 and a remainder of 2. Find N. | [
"597",
"152",
"297",
"197"
]
| B | According to the division process of whole numbers, N can be written, using multiplication, as follows | aqua_rat |
Which of the following is spread from animals to man - | [
"T. floccosum",
"T. rubrum",
"T. verrucosum",
"T. tonsurans"
]
| C | T. verrucosum is a zoophilic species . The dermatophytes on the basis of their natural habitat and host preferences can be classified into following groups: (i) Anthropophilic species: These dermatophytes are typically adapted to live on human host. They are transmitted from human to human through fallen hairs, desquamated epithelium, combs, hair brushes, towels, etc. Examples: T. rubrum, T. mentagrophytes ,T. schoenleinii, T. tonsurans and T. violaceum, M. audouinii ,E. floccosum. (ii) Zoophilic species: These are the dermatophytes that live on animals and often cause infection in their animal host. These zoophilic species are transmitted from infected animals to humans by direct and indirect contacts with domestic animals (e.g., cat and dog) and occasionally wild animals. Examples: T. equinum T. verrucosum M. canis, M. equinum. (iii) Geophilic species: These are saprophytic fungi found in soil or in dead organic substances. They occasionally cause infection in humans and animals. Examples are Microsporum gypseum, E. stockdaleae and Trichophyton ajelloi. | medmcqa |
Which of the following is an indication for the use of raloxifene? | [
"Hypoparathyroidism",
"Post-menopausal osteoporosis",
"Chronic renal failure",
"Renal osteodystrophy"
]
| B | Raloxifene is a SERM used in post-menopausal osteoporosis. -It has additional advantage of causing decrease in risk of breast and endometrial cancer. -Major adverse effect of raloxifene is thromboembolism. | medmcqa |
Lions and zebras live | [
"in different environments",
"near each other",
"in different habitats",
"far from Earth"
]
| B | Lions and zebras inhabit the same ecosystems, particularly savannas and grasslands in Africa, where they coexist as part of the predator-prey relationship. | openbookqa |
Amongst the following, which is the rarest oppounistic fungal infection seen in AIDS patient: September 2008 | [
"Aspergillosis",
"Histoplasmosis",
"Cryptococcosis",
"Candidiasis"
]
| A | Aspergillosis The commonly encountered fungal infections in HIV-positive patients are candidosis, cryptococcosis and histoplasmosis. Other fungal infections like coccidiodomycosis and Penicilliosis marneffei are seen usually in geographically restricted areas. | medmcqa |
Which part of an earthquake is in the ground where the ground breaks? | [
"the epicenter",
"the tectonic plate",
"the fault",
"the focus"
]
| D | The focus of an earthquake is in the ground where the ground breaks. The epicenter is the point at the surface just above the focus. | sciq |
A simple bacterial test for mutagenic carcinogens is- | [
"Gene splicing",
"Redox test",
"Ames test",
"Bacteriophage"
]
| C | The Ames test is a widely employed method that uses bacteria to test whether a given chemical can cause mutations in the DNA of the test organism. More formally, it is a biological assay to assess the mutagenic potential of chemical compounds. A positive test indicates that the chemical is mutagenic and therefore may act as a carcinogen, because cancer is often linked to mutation. The test serves as a quick and convenient assay to estimate the carcinogenic potential of a compound because standard carcinogen assays on mice and rats are time-consuming (taking two to three years to complete) and expensive. However, false-positives and false-negatives are known | medmcqa |
A four year old boy was admitted with a history of abdominal pain and fever for two months maculo popular rash for ten days, and dry cough, dyspnea and wheezing for three days. One examination liver and spleen were enlarged 4 cm and 3 cm respectively below the costal margins. His hemoglobin was 10.0 g/dl, platelet count 37x 109/L and total leukocyte count 70 x 109L, which included 80% eosinophils Bone marrow examination revealed a cellular marrow comprising of 45% blasts and 34% Eosinophils and eosinophilic precursors. The blasts stained negative for myeloperoxidase and non-specific esterase and were positive for CD19, CD10, CD22 and CD20. Which of the following is the most likely diagnosis? | [
"Acute myeloid leukemia with eosinophilia",
"Acute eosinophilic leukemia",
"Biphenotypic acute leukemia (lymphoid and eosinophil lineage",
"Acute lymphoblastic leukemia with hypereosinophilic syndrome"
]
| D | (Acute lymphoblastic leukemia with hypereosinophilic syndrome) The immunophenotypic markers in the question are specific for lymphoid lineage alone and not for myeloid series. Presence of immunophenotypic marker for myeloid lineage is essential before considering a diagnosis of biphenotypic leukemias, or Acute Eosinophilic leukemia (Eosinophils belong to the myeloid series) or Acute myeloid leukemia The patient in question has positive markers for lymphoid series in isolation (CD19,CD10,CD20 and CD22) and hence the single answer by exclusion is Acute Lymphoblastic leukemia (lymphoid series) with hypereosinophilic syndrome. | medmcqa |
In a sample of associates at a law firm, 25 percent are second-year associates, and 75 percent are not first-year associates. What percentage of the associates at the law firm have been there for more than two years? | [
"25",
"75",
"0",
"50"
]
| D | 75 percent are not first-year associates --> This means 75 percent associates are either two or more than two years
Already, we know % of second-year associates = 25 % | aqua_rat |
If Codon no 302 UAG is replaced by UAA, then this mutation is: | [
"Given information is not sufficient to identify",
"Silent",
"Nonsense",
"Missense"
]
| B | In this mutation, stop codon - UAG is replaced by another stop codon- UAA. So, this is silent mutation. In silent mutations, there is no change in primary structure of protein. OTHER QUESTIONS FREQUENTLY ASKED ON THIS TOPIC: Silent Mutation:The codon containing the changed base codes for the same amino acid.For example, if the serine (Ser) codon UCA is given a different third base, U, to become UCU, it still codes for Ser. This is termed a "silent" mutation. Missense Mutation:The codon containing the changed base codes for different amino acid. For example, if the Ser codon UCA is given a different first base, C, to become CCA, it will code for a different amino acid (in this case, proline ). This is called a "missense" mutation. Nonsense Mutation:The codon containing the changed base become a termination codon. For example, if the Ser codon UCA is given a different second base, A, to become UAA, the new codon causes termination of translation at that point and the production of a shoened (truncated) protein. | medmcqa |
Which is the most common cause of male infertility | [
"Varicocele",
"Idiopathic",
"Smoking",
"Epididymitis"
]
| A | Varicocele is the most common cause of male infertility. | medmcqa |
Chromosomal translocation characteristic in acute promyclocytic leulamia | [
"+ (9;22)",
"+ (15;17)",
"+ (22;9)",
"+ (21;17)"
]
| B | In Aml with +(15;17), acute promyelocytic leulamia (M3 stage), auer rode present (most common stage associated with DIC). | medmcqa |
The length of a rectangle is two - fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 1225 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units? | [
"146 sq.units",
"556 sq.units",
"155 sq.units",
"140 sq.units"
]
| D | Given that the area of the square = 1225 sq.units
=> Side of square = √1225 = 35 units
The radius of the circle = side of the square = 35 units Length of the rectangle = 2/5 * 35 = 14 units
Given that breadth = 10 units
Area of the rectangle = lb = 14 * 10 = 140 sq.units | aqua_rat |
Amyloid is best identified by - | [
"Green birefringence of stained amyloid when viewed by polarizing microscope",
"Secondary fluorescence in UV light with riboflavin",
"Congo red",
"Staining with methyl violet"
]
| A | Green birefringence of stained amyloid when viewed by polarizing microscope | medmcqa |
Most common part of larynx involved in TB - | [
"Anywhere",
"Anterior",
"Middle",
"Posterior"
]
| D | Ans. is 4b' i.e., Posterior o Disease affects the posterior third of larynx more commonly than anterior part.o The parts affected in descending order of frequency are i) Interarytenoid fold, ii) Ventricular band, iii) Vocal cords,iv) Epiglottis.o Also see above explanation. | medmcqa |
Development examination should be fuher evaluated in child of 12 weeks if he ? | [
"Does not hold head at 90deg",
"Does not vocalize",
"Does not babble",
"Does not change bright red ring from one hand to other even if given in hand"
]
| B | Does not vocalize o Vocalization develops by 4 weeks. o Babbling develops by 7 months o A child transfer the objects from one hand to another by 5-7 months. o A child can hold head at 90deg (above horizontal plane in ventral suspension) by 3 months --> Neck holding develops by 3 months. | medmcqa |
The length of the rectangular field is double its width. Inside the field there is square shaped pond 6m long. If the area of the pond is 1/8 of the area of the field. What is the length of the field? | [
"75",
"32",
"11",
"24"
]
| D | A/8 = 6 * 6 => A = 6 * 6 * 8
x * 2x = 6 * 6 * 8
x = 12 => 2x = 24 | aqua_rat |
Most commonly used cholinesterase regenerator at NM junction is - | [
"Obidxime",
"Edrophonium",
"Pralidoxime",
"Diacetyl monoxime"
]
| C | Pralidoxime o Pralidoxime is most commonly used cholinesterase reactivater.OXIMESo Oximes 1 Pralidoxime 2-PAM, obidoxime and diacetyl-monoxime (DAM)J are used in organophosphatepoisoning.o Oximes acts by reactivating cholinesterase enzyme.o Mechanism of actionIn organophosphate poisoning esteratic site of cholinesterase is phosphorylated and anionic site is free.Phosphorylated cholinesterase reacts very slowly with water.However, if more reactive OH groups in the form of oximes are provided, reactivation occurs more than a million time faster.Oximes attach to anionic site and provide more reactive OH groups.Oximes are ineffective in Carbamates poisoning.Pralidoxime is contraindicated in carbamates poisoning, because not only it does not reactivate carbamylated enzyme, it has weak anti-chE activity of its own.Remembero Obidoxime is more potent than pralidoxime.o Pralidoxime and obidoxime are lipid insoluble, while diacetyl-monoxime (DAM) is lipid soluble so it can cross EBB and regenerate AChE in brain.o Atropine is used in both organophosphate and carbamate anticholinesterase poisoning. | medmcqa |
Solar and wind are still expensive compared to what? | [
"fossil fuels",
"coal fuels",
"batteries",
"electricity"
]
| A | Solar and wind are still expensive relative to fossil fuels. The technology needs to advance so that the price falls. | sciq |
A sum was put at simple interest at certain rate for 3 years. Had it been put at 1% higher rate it would have fetched Rs. 75 more. The sum is: A. Rs. 2,400 B. Rs. 2,100 C. Rs. 2,200 D.Rs. 2,480 | [
"2400",
"2300",
"2200",
"2500"
]
| D | 1 percent for 3 years= 75
1 percent for 1 year = 25
=> 100 percent = 2500 | aqua_rat |
The difference between a number and its three-fifths is 50.What is the number? | [
"125",
"None of these",
"75",
"100"
]
| A | Suppose the number is N.
Then N - 3⁄5N = 50
⇒ 2N⁄5 = 50
∴ N=50×52=125 | aqua_rat |
a spider web consists of 3 concurrent lines forming radial support for 20 concentric regular hexagon .the hexagon vertices are 5mm from their immidiate neighbour. if the innermost hexagon has a side length 3mm how many meters is the length of the entire web including the 3 diagonals ? | [
"9.2",
"6.3",
"8.2",
"6.1"
]
| B | for perimeter of all hexagon =6*(3+8+13+...........20th term.)
sum will be 6060 mm
and for length of one diagonal find 20th term=98
so total length =6060+294=6354 mm=6.354 m | aqua_rat |
Least likely to be Pre-leukemic condition is ? | [
"Paroxysmal nocturnal hemoglobinuria",
"Paroxysmal cold hemoglobinuria",
"Myelodysplastc syndrome",
"Aplastic anemia"
]
| B | Paroxysmal cold hemoglobinuria Conditions predisposing to acute leukemia o Myelodysplastic syndrome o Chronic myeloproliferative disorders o Ionizing radiation & ceain toxic chemicals o Bloom syndrome o Fanconi anemia o Paroxysmal nocturnal hemoglobinuria o Li-Fraumani syndrome o Diamond - Blackfan anemia o Ataxia telangiectasia Down syndrome Klinefelter's syndrome o Neurofibromatosis o Aplastic anemia (rarely) Schwachman syndrome Turner syndrome | medmcqa |
Line m lies in the xy-plane. The y-intercept of line m is -2, and line m passes through the midpoint of the line segment whose endpoints are (2, 8) and (6, -4). What is the slope of line m? | [
"-1/3",
"1",
"-3",
"-1"
]
| B | The midpoint of (2,8) and (6,-4) is (4,2).
The slope of a line through (0,-2) and (4,2) is (2-(-2))/(4-0) = 4/4 = 1 | aqua_rat |
Which of these drugs DOES NOT decrease angiotensin II activity: | [
"Valsaan",
"Omapatrilat",
"Enalapril",
"Nesiritide"
]
| D | Drugs that can decrease Angiotensin 2 activity- ACE inhibitors e.g. Enalapril Angiotensin receptor blocker e.g. Valsaan Combination of ACE inhibitor and NEP inhibitors e.g.Omapatrilat. Nesiritide- Recombinant BNP | medmcqa |
Pleural fibroma is differentiated from mesothelioma by the presence of which of the following in the former-a) CD14b) CD24c) Cytokeratin absenced) Erb positivee) CD34 | [
"ce",
"ae",
"ac",
"b"
]
| A | Pleural fibroma (Benign fibrous mesothelioma)
This is the primary benign lesion of pleura.
The tumor is often attached to the pleural surface by a pedicle.
These tumor do not usually produce a pleural effusion and have no relationship to asbestos exposure (in contrast to malignant mesothelioma).
They consist of dense fibrous tissue with occasional cysts filled with viscid fluid.
Microscopically, the tumors show whorls of reticulin and collegen fibers among which are interspersed spindle cells resembling fibroblasts.
The tumor cells are CD 34 (+)ve and keratin negative by immunostaining. This feature can be diagnostically useful in distinguishing these lesions from malignant mesothelomas which is CD34 (-)ve and keratin positive. | medmcqa |
An outlet pipe can empty 2/3 rd of a cistern in 12 minutes. In 5 minutes, what part of the cistern will be emptied? | [
"4/1",
"4/9",
"4/2",
"5/18"
]
| D | 2/3 ---- 12
? ----- 5 ==> 5/18 | aqua_rat |
What is the smallest integer X such that 2X+2 is divisible by 33, 44, 55, and 666? | [
"X = 53186760",
"X = 36629",
"X = 6666",
"X = 26593379"
]
| B | 33 = 3 * 11
44 = 2 * 2 * 11
55 = 5 * 11
666 = 2 * 3 * 3 * 37 | aqua_rat |
A board 7ft. 9 inches long is divided into 3 equal parts . What is the length of each part? | [
"35 inches",
"31 inches",
"32 inches",
"34 inches"
]
| B | 7 ft 9 in is 84 + 9 = 93 inches. so 93/3 = 31 inches or 2 ft. 7 inch. | aqua_rat |
Rice watery stool is indicative of which organism- | [
"Vibrio cholerae 0139",
"Vibrio vulnificus",
"Vibrio cholerae Ol",
"Shigella"
]
| C | Vibrio cholerae OlRef: Microbiology by Ananthanarayan and Paniker 8th ed. /302-305* Though the various strains of cholera may present with rice watery diarrhea, the classic rice watery diarrhea is usually associated with strains Ol and strain 0139.* In these strains the more common strain to find is strain Ol. | medmcqa |
The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on atleast one ticket is | [
"0.5904",
"0.5907",
"0.59076",
"0.5909"
]
| A | P(winning prize atleast on one ticket)
= 1 - P("Losing on all tickets")
= 1 - (0.8)4 = (1 + (0.8)2)(1 - (0.8)2)
= (1.64)(0.36) = 0.5904 | aqua_rat |
The sum of prime numbers that are greater than 60 but less than 70 is | [
"128",
"260",
"197",
"67"
]
| A | A prime number is a number that has only two factors: 1 and itself. Therefore, a prime number is divisible by two numbers only.
Let's list the numbers from 61 to 69.
61, 62, 63, 64, 65, 66, 67, 68, 69
Immediately we can eliminate the EVEN NUMBERS because they are divisible by 2 and thus are not prime.
We are now left with: 61, 63, 65, 67, 69
We can next eliminate 65 because 65 is a multiple of 5.
We are now left with 61, 63, 67, 69.
To eliminate any remaining values, we would look at those that are multiples of 3. If you don’t know an easy way to do this, just start with a number that is an obvious multiple of 3, such as 60, and then keep adding 3.
We see that 60, 63, 66, 69 are all multiples of 3 and therefore are not prime.
Thus, we can eliminate 63 and 69 from the list because they are not prime.
Finally, we are left with 61 and 67, and we must determine whether they are divisible by 7. They are not, and therefore they must be both prime. Thus, the sum of 61 and 67 is 128. | aqua_rat |
Which of the given nerve carries taste sensation from anterior two third of tongue? | [
"Vagus nerve",
"Glossopharyngeal nerve",
"Facial nerve",
"Lingual nerve"
]
| C | Taste sensation from anterior two third ( fungiform , filiform papillae ) of the tongue is carried by chorda tympani nerve . Chorda tmpani nerve lies within the lingual nerve upto the infratemporal fossa. In the infratemporal fossa chorda tympani comes out of the lingual nerve and enters the pterotympanic fissure to join the facial nerve. Taste sensation from posterior 1/3rd of tongue (circumvallate papillae) is carried by glossopharyngeal nerve. | medmcqa |
Enzyme used in Leukemia - | [
"Amylase",
"Lipase",
"Transminase",
"Asparginase"
]
| D | Asparginase o Asparaginase is a protein and it is an enzyme.# Asparaginase catalyzes the hydrolysis of asparagine to aspartic acid and ammonia.o Asparatrine is required for protein synthesis and is essential part of cellTumour cells, especially All cell, have low levels of aspargine synthetase, the enzyme that catalyzes the synthesis of asparagine.Therefore tumour cells require an external source of asparagine in order to survive.o Asparasinase serves to destroy all the asparagine that does manage to get synthesized in a tumour cell or that comes in from other sources, thus the tumour cells die because they do not have the aspareine needed to build proteins.o Asparaginase does not come naturally in humans but is found in bacteria, plants, animals including guinea pigs,o Asparaginase used in chemotherapy is usually isolated from cultures ofE.coli. | medmcqa |
The sum of two numbers is 16. The difference is 2. What are the two numbers? | [
"11-5",
"8-8",
"9-7",
"13-3"
]
| C | 9+7 = 16
9 - 7 = 2 | aqua_rat |
35 years old woman with H/O recurrent PID presents in emergency with sudden onset of abdominal pain with fever. She had her regular period 5 days back. Physical examination reveals abdominal tenderness with guarding and rigidity. Per speculum finding shows diy vaginal discharge. Per vaginal examination shows adnexal tenderness. Lab investigation shows increased TLC & increased ESR, Most probable diagnosis is - | [
"Diveiculitis",
"Appendicitis",
"Ruptured tubo ovarian mass",
"Ruptured ectopic"
]
| C | The history of a recurrent PID and a sudden deterioration points towards a ruptured T/O mass . Alone PID, will have pain and fever with Increased TLC, but not present with the above mentioned acute onset. Acute onset goes in the our of a ruptured abscess. Appendicitis and diveiculitis may have similar onset but the systemic symtoms of toxicity are more profound and both of these are not associated with Vaginal discharge This case can be managed with a exploratory laparotomy & lavage, antibiotics and then follow up of the cultures taken at surgery. | medmcqa |
A boat can travel with a speed of 42 km/hr in still water. If the speed of the stream is 10 km/hr, find the time taken by the boat to go 80 km downstream | [
"1 hour 30 min",
"1 hour 40 min",
"1 hour 20 min",
"2 hour 40 min"
]
| A | Speed of the boat in still water = 42 km/hr
speed of the stream = 10 km/hr
Speed downstream = (42+10) = 52 km/hr
Distance travelled downstream = 80 km
Time taken =distance/speed
=80/52
= 1.54 hours
= 1 hour 30 min. | aqua_rat |
The ratio of toddlers to infants at a day care center is 7 to 3. If twelve more infants join the day care to change the ratio to 7 to 5, how many toddlers are there at this day care center? | [
"36",
"120",
"42",
"72"
]
| C | 5x - 3x = 12
So, 2x = 6
hence no of toddlers is 6*7 =42 | aqua_rat |
Which of the following reaches the largest value over the range -1 <= R <= 1? | [
"(R+1000)",
"(R+3)/(R^100)",
"(R/2R)",
"(R+3)^100"
]
| B | (R+3)/(R^100) can be equal any arbitrarily large number. Some of the other options are large, but they all have a definite maximum. (R+3)/(R^100) does not, so. | aqua_rat |
At a certain store, the price of a pair of shoes is ten dollars more than three times the price of a pair of jeans and the price of a sweater is fifty percent more than the price of a pair of shoes. If the price of a pair of jeans is j dollars at this store, then what is the price, in dollars, of a pair of shoes, a sweater and a pair of jeans, in terms of j ? | [
"4.5j + 30",
"1.5j + 10",
"8.5j + 25",
"3j + 20"
]
| C | Given
Price of Jeans = J
Price of shoes = 10+3J
Price of Sweater = 1.5(10+3J) | aqua_rat |
The following disease is caused by | [
"Arthus phenomenon",
"Human parvovirus B19",
"Epstein-bar virus",
"Scarlet fever"
]
| B | Human Parvovirus B19.The picture shows slapped cheeks appearance which can be confirmed serologically by demonstrating B19 specific IgM on an acute serum sample.Image source- style="font-family: Times New Roman, Times, serif"> | medmcqa |
Type of collagen found in basement membrane is | [
"Type III",
"Type I",
"Type II",
"Type IV"
]
| D | Type I is the most abundant form,seen in connective tissues in almost all regions of the body. Type II is mainly seen in cailage and vitreous humor. Type III is seen in skin, lung and vascular tissues and Type IV is seen in basement membranes.others are seen in minor quantities. About 30 genes are resposible for collagen synthesis ,and the enzymes necessary for collagen synthesis. REFERENCE : DM VASUDEVAN TEXTBOOK SEVENTH EDITION ; PAGE NO ;720 | medmcqa |
Which one of the following is not a feature of Klinefelter's syndrome | [
"Hypogonadism",
"Short 4th metacarpal",
"Gynecomastia",
"Eunuchoid"
]
| B | Short 4th metacarpal is a feature of Turner syndrome. | medmcqa |
If x is equal to the sum of the integers from 30 to 50, inclusive, and y is the number of EVEN integers from 30 to 50, inclusive, what is the value of x+y ? | [
"810",
"830",
"851",
"811"
]
| C | Since the integers from 30-50 are consecutive we can use the "median x # of terms formula" to determine x. There are 21 terms and the median is 40. This gives a total of 21x40 = 840. There are 11 even integers from 30-50 = y. Therefore, x+y = 851. | aqua_rat |
Fatal swelling of what organ can result from both encephalitis and meningitis, which typically cause a severe headache and a fever? | [
"liver",
"heart",
"kidney",
"brain"
]
| D | Encephalitis and meningitis aren’t very common, but they can be extremely serious. They may cause swelling of the brain, which can be fatal. That’s why it’s important to know the symptoms of these diseases. Both encephalitis and meningitis typically cause a severe headache and a fever. Meningitis also causes a stiff neck. Both require emergency medical treatment. | sciq |
If an integer n is to be selected at random from 1 to 100, inclusive, what is probability n(n+1) will be divisible by 5? | [
"1/3",
"2/3",
"1/5",
"2/5"
]
| D | For n(n+1) to be a multiple of 5, either n or n+1 has to be a multiple of 5.
Thus n must be of the form 5k or 5k-1.
The probability is 2/5. | aqua_rat |
In children with cerebral oedema which one of the following corticosteroids will be effective – | [
"Prednisolone",
"Hydrocortisone",
"Betamethasone",
"Dexamethasone"
]
| D | Dexamethasone is preferred. | medmcqa |
What part of the rainforest commonly has ferns and other ground plants? | [
"understory",
"canopy layer",
"forest floor",
"emergent layer"
]
| A | Ferns are common in the understory of the tropical rainforest. | sciq |
Set A contains all the even numbers between 10 and 50 inclusive. Set B contains all the even numbers between 110 and 150 inclusive. What is the difference between the sum of elements of set B and the sum of the elements of set A? | [
"11325",
"2550",
"5050",
"2100"
]
| D | Set A contains 10, 12,14 , 16 ... 50
Set B contains 110 , 112 , 114 ... 150
Number of terms in each set = 21
Difference between corresponding terms in set A and B = 100
Difference between Sum of set B and set A = 100*21 = 2100 | aqua_rat |
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