TASK DEFINITION: Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).
PROBLEM: Calculate prob of sequence zl when two letters picked without replacement from llllllzl.

SOLUTION: 1/8

PROBLEM: Convert 875.795 weeks to hours.

SOLUTION: 147133.56

PROBLEM: Suppose 4*t + 9 = 5*q, -2 + 0 = 2*q - 3*t. Solve 13 = 2*z + f, q*z + 0*z - f = 15 for z.

SOLUTION:
4