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.

Ex Input:
Question: On his first 3 tests, Rajeev received an average score of X points. If on his fourth test, he exceeds his previous average score by 24 points, what is his average score for his first 4 tests?

 Option A: X

 Option B: X+6

 Option C: X+4

 Option D: X+3

 Option E: X+2

Ex Output:
Option B


Ex Input:
Question: The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:

 Option A: 19 years

 Option B: 17 years

 Option C: 25 years

 Option D: 15 years

 Option E: 12 years

Ex Output:
Option A


Ex Input:
Question: Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The values of m and n respectively are:

 Option A: 7, 6

 Option B: 5, 1

 Option C: 6, 3

 Option D: 8, 7

 Option E: None of these

Ex Output:

Option C