Question

What least number of should be subtracted or added to 521 to make it a perfect square respectively?
1. 27 and 18
2. 37 and 8
3. 28 and 17
4. 38 and 7

Answer 1

Correct Answer - Option 2 : 37 and 8

GIVEN:

Number = 521

CALCULATION:

√521 = 22.825……..

22² = 484

23² = 529

Least number that should be subtracted = 521 – 484 = 37

Least number that should be added = 529 – 521 = 8

Hence, required numbers are 37 and 8 respectively.