So, in the question we can clearly see that,
6561 is the square root of 81
so, the number which will be 9 according to the concept
as square of 3 is 9 and the square of 9 will be 81
so, the number will be 9
The correct option is (D): 9
Identify the number that will replace the question mark in the second equation based on the relationship represented in the first equation.