Question

1) Find the least number which must be added to 4931 to make it a perfect square. plz give me answer. 10 mm.

Answer 1

Answer - 845
but what is 10mm

Answer 2

Using long division method divide 4931
Quotient =70
Remainder=31
70^2 =4900
4931-31=4900
Therefore 31 is subtracted from 4931 to get a perfect sqare