Question

By observing the digit at ones place, choose which of the following can be perfect square? 100, 927, 572, 358

Answer 1

100

Step-by-step explanation:

100 is a perfect square . It is the square of 10.

The trick that can be used to find out perfect square here is that a perfect square can have 2 zeroes in the end like 100 , 900 etc. But this does not imply to all as 200 has 2 zeroes in the end but it is not a perfect square.