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 farmer spent $ 35 on feed for chickens and goats. he spent 40 % money on chicken feed, which he bought at a 50 % discount off the full price, and spent the rest on goat feed, which he bought at full price. if the farmer had paid full price for both the chicken feed and the goat feed, what amount would he have spent on the chicken feed and goat feed combined ?
Options: a. $ 37.80, b. $ 49, c. $ 39.20, d. $ 39.50, e. $ 40.60

SOLUTION: b

PROBLEM: Problem: an industrial loom weaves 0.128 metres of cloth every second. approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?
Options: a. 194 seconds, b. 195 seconds, c. 196 seconds, d. 197 seconds, e. none of these

SOLUTION: b

PROBLEM: Problem: a bullet train 120 m long is running with a speed of 50 kmph. in what time will it pass a man who is running at 4 kmph in the direction opposite to that in which the bullet train is going ?
Options: a. 23 sec, b. 15 sec, c. 12 sec, d. 8 sec, e. 16 sec

SOLUTION:
d