context: ###List of Questions
  (1) What is prob of picking 1 z, 1 b, and 2 n when four letters picked without replacement from abtatanbjjtzajanajja?
  (2) Suppose -3*u + n = -2*n - 432, 5*u + 4*n - 720 = 0. What is the greatest common divisor of u and 12?
  (3) How many months are there in three tenths of a decade?
  (4) -23810 divided by 5
  (5) Suppose -3*c = -5*b + 9, -3*c + 4*b - 6 = -0*c. Suppose 0 = -c*y - 2*y. Let q be -1 + (-3 - 1)/(-4). Solve -4*g + 14 - 6 = y, q = 5*j + 5*g - 5 for j.
q_1: (1) What is prob of picking 1 z, 1 b, and 2 n when four letters picked without replacement from abtatanbjjtzajanajja?
q_2: (2) Suppose -3*u + n = -2*n - 432, 5*u + 4*n - 720 = 0. What is the greatest common divisor of u and 12?
q_3: (3) How many months are there in three tenths of a decade?
q_4: (4) -23810 divided by 5
q_5: (5) Suppose -3*c = -5*b + 9, -3*c + 4*b - 6 = -0*c. Suppose 0 = -c*y - 2*y. Let q be -1 + (-3 - 1)/(-4). Solve -4*g + 14 - 6 = y, q = 5*j + 5*g - 5 for j.