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What is the least number to be added to 920 to make it a perfect squar

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Bunuel
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What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   30 Jul 2021, 08:15
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What is the least number to be added to 920 to make it a perfect square?

(A) 31
(B) 39
(C) 41
(D) 43
(E) 49
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C
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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   30 Jul 2021, 08:46
Going by nearest 100's , it will be 900
since 30^2 =900 => a number greater than this =31 , 31^2 =961 =920+41,
Hence IMO C
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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   31 Jul 2021, 03:22
\(31^2\)=961
961-920=41
Option (c)


Bunuel wrote:
What is the least number to be added to 920 to make it a perfect square?

(A) 31
(B) 39
(C) 41
(D) 43
(E) 49
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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   31 Jul 2021, 03:39
C)41 as find the closest perfect square first which is 900, ie. The square of 30. Now check 31x31 which is 961. Therefore 961 is nearest to 920 in terms of being a greater number which is also a perfect square. Thus 41 is the correct answer.

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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   31 Jul 2021, 04:58
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961,number next to the square of 30 (900) will be 31*31=961.
Answer should be 961-920 =41

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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink] New post   01 Jan 2024, 07:59
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Re: What is the least number to be added to 920 to make it a perfect squar [#permalink]
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