Square root of 1521=1 step)number of the digits in the square root=no. of the digits in the no.=4=even
=2 step)no. of digits in the square root=4\2 digits=2 digits
=3 step) find the nearest square to the first two digits in the given no.=15's nearest square=3 square =9
=4 step) then multiply three by two=6
=5 step)then subtract the first two digits by nine=6
=6 step)then write the no. 6 under the next digit that is 2, then combine the two digits it becomes 62 divide it by 6
which gives q-10 and r-2 then write the digit two under the next digit.
And then this process continues till you cover the two blanks.
and the square root is 39.
