Question

observe the unit digit and stay in which of the following are not perfect square 4836

Answer 1

by observing the last digit ,the number might be a perfect square but it need not to be

Answer 2

hey!!

here is your answer....! =>

the unit digit of this number is 6..

the unit digit of 1 square us 1

2 is 4

3 is 9

4 is 6

5 is 5

6 is 6

7 is 9

8 is 4

9 is 1

10 is 0

so, 4836 can be a perfect square, if we check the unit numbers..

but in reality it is not a perfect square.

hope it helps!