Q. 34.2( 24 Votes )

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Answer :

Given, a number as 4000.

Need to find out the least number which must be subtracted to make it a perfect square.


Now, using by division method we get



That means if we subtract 31 from 4000 we get perfect square


4000-31 = 3969.


= 63.


Hence, 31 must be subtracted from the given number to get a perfect square


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