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.
--------
Question: 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

Answer: c


Question: Problem: what is the rate percent when the simple interest on rs. 720 amount to rs. 180 in 4 years ?
Options: a. 6.25, b. 7.25, c. 8.25, d. 9.25, e. 10.25

Answer: a


Question: Problem: find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 11 cm.
Options: a. 335 cm 2, b. 209 cm 2, c. 285 cm 2, d. 825 cm 2, e. 725 cm 2

Answer:
b