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.

Input: Consider Input: Problem: a man traveled from the village to the post - office at the rate of 25 kmph and walked back at the rate of 4 kmph. if the whole journey took 5 hours 48 minutes, find the distance of the post - office from the village ?
Options: a. 70 m, b. 80 km, c. 20 km, d. 10 km, e. 73 km

Output: c


Input: Consider Input: Problem: in a factory, an average of 60 tv ' s are produced per day for the fist 25 days of the months. a few workers fell ill for the next 5 days reducing the daily avg for the month to 58 sets / day. the average production per day for day last 5 days is ?
Options: a. 20, b. 36, c. 48, d. 50, e. 59

Output: c


Input: Consider Input: Problem: two trains start from a & b and travel towards each other at speed of 50 kmph and 60 kmph resp. at the time of the meeting the second train has traveled 100 km more than the first. the distance between them.
Options: a. 800 km, b. 900 km, c. 1000 km, d. 1100 km, e. 1200 km


Output: d