bhatt ji

 

i understand what u say.

i wrote that as the answer because when we add squares of numbers,

it could end with any of the numbers.

 

but when u consider only one number square

the answer is not same bcos squares of numbers do not end

with all possible numbers.

 

for example a number ending with 2 or 3 or 7 or 8 can never be a square.

 

anyway i understand ur point completely