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Which smallest number should be added to 1728 to make the result a perfect square?
1. 26
2. 36
3. 30
4. 32

1 Answer

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Best answer
Correct Answer - Option 2 : 36

We know that:

402 = 1600,

412 = 1681,

and

422 = 1764.

∴ The smallest number to be added to 1728 to make it a perfect square = 1764 – 1728 = 36

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