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: 5358 x 71 = ?
Options: a. 273762, b. 283758, c. 383298, d. 273258, e. 380418

SOLUTION: e

PROBLEM: Problem: a and b go around a circular track of length 200 m on a cycle at speeds of 36 kmph and 72 kmph. after how much time will they meet for the first time at the starting point ?
Options: a. 120 sec, b. 198 sec, c. 178 sec, d. 20 sec, e. 276 sec

SOLUTION: d

PROBLEM: Problem: a pupil ' s marks were wrongly entered as 85 instead of 33. due to that the average marks for the class got increased by half. the number of pupils in the class is :
Options: a. 30, b. 104, c. 20, d. 25, e. 26

SOLUTION:
b