Q12 of 114 Page 3

By just examining the units digits, can you tell which of the following cannot be whole squares?

(i) 1026 (ii) 1028


(iii)1024 (iv) 1022


(v) 1023 (vi) 1027

Numbers ending with 2, 3, 7, 8 cannot be perfect square. So,

1028 (iv) 1022 (v) 1023 (vi) 1027 cannot be whole squares.


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