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: a movie buff buys movies on dvd and on blu - ray in a ratio of 13: 4. if she returns 2 blu - ray movies, that ratio would change to 7: 2. if she buys movies on no other medium, what was the original number of movies purchased ?
Options: a. 22, b. 28, c. 77, d. 99, e. 119

SOLUTION: e

PROBLEM: Problem: when x is multiplied by 3, the result is 10 more than the result of subtracting x from 26. what is the value of x ?
Options: a. - 4, b. 9, c. 11, d. 13, e. 22

SOLUTION: b

PROBLEM: Problem: a shop owner sells 60 mtr of cloth and gains sp of 10 mtrs. find the gain % ?
Options: a. 20 %, b. 40 %, c. 50 %, d. 60 %, e. 70 %

SOLUTION:
a