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: walking at 4 / 5 of her normal speed, a worker is 10 minutes later than usual in reaching her office. the usual time ( in minutes ) taken by her to cover the distance between her home and her office is
Options: a. 30, b. 35, c. 40, d. 45, e. 50

SOLUTION: c

PROBLEM: Problem: a shop owner professes to sell his articles at certain cost price but he uses false weights with which he cheats by 12 % while buying and by 30 % while selling. what is his percentage profit ?
Options: a. 10.22 %, b. 20.22 %, c. 21.22 %, d. 60 %, e. ca n ' t be calculated

SOLUTION: d

PROBLEM: Problem: the sum of the first n positive perfect squares, where n is a positive integer, is given by the formula n ^ 3 / 3 + c * n ^ 2 + n / 6, where c is a constant. what is the sum of the first 17 positive perfect squares ?
Options: a. 1,010, b. 1,164, c. 1,240, d. 1,316, e. 1,785

SOLUTION:
e