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A Perfect Square Never Ends with 2,3,7 or 8 as Last Digit

Just by looki...

Question

Just by looking at the numbers, identify which is not a perfect square?

A

382

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B

484

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C

576

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D

529

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Solution

The correct option is A
382

Numbers ending with 2, 3, 7, or 8 at unit's place can never be perfect squares.

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Which of the following numbers is not a perfect square?
(a) 529
(b) 961
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