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 ppy when three letters picked without replacement from {y: 2, p: 2}.

SOLUTION: 1/6

PROBLEM: Suppose -5*j + 6*j - 5 = 0. Solve j*y - 5 = -3*u, 5*y - u = -1 - 14 for y.

SOLUTION: -2

PROBLEM: Let r be 31 + 5 + (-3 - 0). Let h(c) = -c**2 - 3*c + 3. Let n be h(-3). Suppose -4*k - 14 = -s, n*s - k - 62 = k. What is the highest common factor of r and s?

SOLUTION:
11