By just examining the units digits, can you tell which of the followin – InterviewSolution

1.

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

Answer»

As we know that numbers ending with 2, 3, 7, 8 cannot be a perfect square.

∴ 1028, 1022, 1023, and 1027 cannot be whole squares.

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