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: what is the units digit of 32 ! + 50 ! + 4 ! + 4 ! ?
Options: a. 0, b. 2, c. 4, d. 6, e. 8

SOLUTION: e

PROBLEM: Problem: in one hour, a boat goes 19 km / hr along the stream and 9 km / hr against the stream. the speed of the boat in still water ( in km / hr ) is :
Options: a. 12 kmph, b. 13 kmph, c. 14 kmph, d. 15 kmph, e. 16 kmph

SOLUTION: c

PROBLEM: Problem: bucket p has thrice the capacity as bucket q. it takes 60 turns for bucket p to fill the empty drum. how many turns it will take for both the buckets p and q, having each turn together to fill the empty drum ?
Options: a. 30, b. 45, c. 50, d. 25, e. 60

SOLUTION:
b