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Division Method

Find the leas...

Question

Find the least number that must be subtracted from 2433 so that the resultant is a perfect square.

A

30

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B

34

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C

36

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D

32

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Solution

The correct option is D
32

Find the remainder using division method.

We can see 32 is the remainder. So, if we subtract 32 from 2433, we will get a perfect square.

$∴ 2433 - 32 = 2401$ , a perfect square.

$\sqrt{2401} = 49$

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