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 picking 1 e and 1 b when two letters picked without replacement from {e: 6, b: 4, n: 1}.

SOLUTION: 24/55

PROBLEM: Let f(h) = h**2 - 5*h + 6. Let l be 6 - (-1 - (-5 - -2)). What is the units digit of f(l)?

SOLUTION: 2

PROBLEM: -1 + 2/((-7)/(7/2))

SOLUTION:
-2