Question

If the remainder in long division method is 12 then how much should be subtracted from the dividend to make it a perfect square?

• A. 0.0
• B. $\sqrt{12}$
• C. 12
• D. -12

Answer 1

The correct option is C 12

In a long division method, the remainder must be subtracted from dividend to make it a perfect square.

Ex:

When we perform long division method for 6412, the remainder will be 12.
So, if we subtract 12 from 6412, we get 6400 which is a perfect square with square root $\sqrt{6400}=80$.