Series Completion - Verbal and Reasoning

Directions to SolveChoose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Q1:

120, 99, 80, 63, 48, ?

A 35

B 38

C 39

D 40

ANS:A - 35

Explanation: The pattern is - 21, - 19, - 17, - 15,..... So, missing term = 48 - 13 = 35.