TASK DEFINITION: You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
PROBLEM: Question: Factor (x + 4)3 - 9x - 36 =

 Option A: (x - 4

 Option B: (x + 6

 Option C: (x + 4

 Option D: (x + 4

 Option E: None

SOLUTION: Option D

PROBLEM: Question: A man's speed with the current is 20 kmph and speed of the current is 3 kmph. The Man's speed against the current will be

 Option A: 11 kmph

 Option B: 12 kmph

 Option C: 14 kmph

 Option D: 17 kmph

 Option E: None of these

SOLUTION: Option C

PROBLEM: Question: The ratio of two numbers is 3 : 6 and their H.C.F. is 7. Their L.C.M. is

 Option A: 48

 Option B: 42

 Option C: 56

 Option D: 27

 Option E: 67

SOLUTION:
Option B