An interesting number properties question that tests your understanding of odd numbers, even numbers and inequalities.

A. 47

B. 23

C. 46

D. 21

E. 22

Correct Answer: Choice B

Labels: Difficult GMAT Problem Solving, GMAT Inequalities, GMAT Number Properties, GMAT Number Theory, GMAT Numbers, GMAT Problem Solving Practice, GMAT Tough Math Questions, Hard GMAT Math Questions