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 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: p has $ 32 more than what q and r together would have had if both b and c had 1 / 6 of what p has. how much does p have ?
Options: a. $ 44, b. $ 48, c. $ 52, d. $ 56, e. $ 60

SOLUTION: b

PROBLEM: Problem: the profit obtained by selling an article for rs. 54 is the same as the loss obtained by selling it for rs. 40. what is the cost price of the article ?
Options: a. rs. 40, b. rs. 50, c. rs. 49, d. rs. 59, e. rs. 47

SOLUTION:
e