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:

1, 9, 25, 49, 81, ?

A 100

B 112

C 121

D 144

ANS:C - 121

Explanation: The series consists of squares of consecutive odd numbers i.e. 12, 32, 52, 72, 92,..... So, missing term = 112 = 121.