1, 9, 25, 49, ?, 121.

by AdminX

What will come at the place of question mark ?
1, 9, 25, 49, ?, 121.

A. 100
B. 91
C. 64
D. 81

Answer & Solution

Answer: Option D
Solution:

12 = 1.
32 = 9.
52 = 25.
72 = 49.
92 = 81.
112 = 121.

1, 9, 25, 49, ?, 121.

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