context: ###List of Questions
  (1) Calculate the remainder when (465/9)/5*3 is divided by 16.
  (2) Evaluate (-28)/21*(-9)/2.
  (3) What is seven quarters of a tonne in kilograms?
  (4) Solve 116*c - 114*c - 4 = 0 for c.
  (5) Calculate prob of sequence vooo when four letters picked without replacement from ovvvovvv.
q_1: (1) Calculate the remainder when (465/9)/5*3 is divided by 16.
q_2: (2) Evaluate (-28)/21*(-9)/2.
q_3: (3) What is seven quarters of a tonne in kilograms?
q_4: (4) Solve 116*c - 114*c - 4 = 0 for c.
q_5: (5) Calculate prob of sequence vooo when four letters picked without replacement from ovvvovvv.