Question

What the square root of sum of the digits in the square of 121

Answer 1

answer is 4..............,......

Answer 2

We have square of 121 = 14641.

Adding the digits -

1 + 4 + 6 + 4 + 1 = 16

Square root of sum of digit = root of 16 = 4

Square root of sum of digits square of 121 = 4.