Question

Find the least number that is to be subtracted from 4094 to make it a perfect square

Answer 1

125 is the answer, as square of 64 is 4096 is more than 4094. So the perfect square will be from 63 x 63, which is 3969.

Explanation:

63 * 63 = 3969

64 * 64 = 4096

4064-3969 = 125