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(n/5)^2

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Carcass
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(n/5)^2 [#permalink] New post   04 May 2021, 06:26
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Question Stats:

92% (00:35) correct 8% (00:24) wrong based on 25 sessions

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Quantity A
Quantity B
\((\frac{n}{5})^2\)
\(\frac{1}{5} \)



A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

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Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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D
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Re: (n/5)^2 [#permalink] New post   04 May 2021, 07:06
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Without knowing N it is not possible to figure out if A is greater than or less than B

A-B = (N^2 -5)/25

N = 25. A>B
N = 1. A < B
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Re: (n/5)^2 [#permalink] New post   04 May 2021, 21:32
isn't it D!!
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Re: (n/5)^2 [#permalink] New post   05 May 2021, 00:34
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n^2/25=1/5

5n^2=25

n^2=5

n=2.2 > 1/5

A is the answer
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Re: (n/5)^2 [#permalink] New post   05 May 2021, 01:52
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Carcass wrote:
n^2/25=1/5

5n^2=25

n^2=5

n=2.2 > 1/5

A is the answer


Answer should be D. Where am I going wrong?

Let's say n =1, Ans will be B
Let's say n = 5, Ans will be A

So its D
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Re: (n/5)^2 [#permalink] New post   11 May 2021, 15:55
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Carcass

Hello!

What happen if n is 0?, then whole term of a will be 0.
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Re: (n/5)^2 [#permalink] New post   11 May 2021, 23:36
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FCOCGALVAN wrote:
Carcass

Hello!

What happen if n is 0?, then whole term of a will be 0.


The OA is A.

However, you are right. There is no constraint at the beginning

Could be D
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Re: (n/5)^2 [#permalink] New post   27 May 2021, 22:44
Edit OA of this Question Carcass sir. Its answer can never be A.
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Re: (n/5)^2 [#permalink] New post   27 May 2021, 22:51
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kumarneupane4344 wrote:
Edit OA of this Question Carcass sir. Its answer can never be A.


Done.

However, The book reported A

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Re: (n/5)^2 [#permalink]
27 May 2021, 22:51
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