Question

Select the number that will come next in the following series.

1, 9, 25, 49, 81, ?

1. 100
2. 130
3. 121
4. 64

Answer 1

Correct Answer - Option 3 : 121

The logic followed here is:

1 → 1²

9 → 3²

25 → 5²

49 → 7²

81 → 9²

Similarly,

121 → 11² 

Hence, the correct answer is 121.