TASK DEFINITION: Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
PROBLEM: Problem: what is the probability of getting a queen or spade from a set of cards ?
Options: a. 3 / 13, b. 4 / 13, c. 5 / 13, d. 6 / 13, e. 7 / 13

SOLUTION: b

PROBLEM: Problem: a waitress ' s income consists of her salary and tips. during one week, her tips were 3 / 4 of her salary. what fraction of her income for the week came from tips ?
Options: a. 1 / 9, b. 1 / 6, c. 3 / 7, d. 4 / 9, e. 5 / 9

SOLUTION: c

PROBLEM: Problem: 20 men can cut 30 trees in 4 hours. if 4 men leave the job, how many trees will be cut in 6 hours ?
Options: a. 24, b. 36, c. 48, d. 22, e. 32

SOLUTION:
b