Find the missing term in the following series.

1)

1,9,25, 49, 81, ?


A) 100

B) 112

C) 121

D) 144

Answer:

Option C

Explanation:

The series consists of squares of consecutive odd numbers ie., 12, 32, 52, 72, 92, .....

So, missing term = 112 = 121.

Hence the answer is (c).