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.

[Q]: 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
[A]: c


[Q]: Problem: if a no. when divided by 44, gives 432 as quotient and 0 as remainder. what will be the remainder when dividing thesame no. by 31
Options: a. 2, b. 4, c. 5, d. 7, e. 8
[A]: c


[Q]: Problem: the ratio of two quantities is incorrect when written as 10 to 14. how should this ratio be written ?
Options: a. 5: 14, b. 10: 7, c. 20: 24, d. 5: 7, e. it can not be determined from the information given
[A]:
d