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Identifying Perfect Square Numbers by Observing Their Last Digit

If a positive...

Question

If a positive integer, after adding 100, becomes a perfect square, and also after adding 168, becomes another perfect square. (168 is added to the original positive integers), then the sum of the digits of the integer is

A

12

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B

11

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C

8

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D

7

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Solution

The correct option is A 12

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Identifying Perfect Square Numbers by Observing Their Last Digit

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