Question

Find the least number which must be subtracted from 2509 to make it a perfect square​

Answer 1

The nearest square is 2500....so 9 must be subtracted so as to obtain 2500 which is a perfect square of 50

Answer 2

9 should be subtracted from the 2509

As we subtract 9 from 2509 we get the 2500

And 2500 is a perfect square of 50