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.

[Q]: Question: A father was as old as his son's present at the time of your birth. If the father's age is 44 years now, the son's age 5years back was?

 Option A: 10 years

 Option B: 12 years

 Option C: 14 years

 Option D: 16 years

 Option E: 17 years
[A]: Option E


[Q]: Question: An inspector rejects 15% of the meters as defective. How many will he examine to reject 15?

 Option A: A

 Option B: B

 Option C: C

 Option D: D

 Option E: E
[A]: Option A


[Q]: Question: x, a, z, and b are single digit positive integers. x = 1/8 a. z = 1/8 b. (10a + b) – (10x + z) could NOT equal

 Option A: 28

 Option B: 35

 Option C: 49

 Option D: 63

 Option E: 55
[A]:
Option E