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sqrt n

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sqrt n [#permalink] New post 08 Jan 2018, 12:46
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Question Stats:

90% (00:10) correct 10% (00:01) wrong based on 10 sessions


Quantity A
Quantity B
n
\(\sqrt{n}\)


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

Kudo for the right answer and explanation.
[Reveal] Spoiler: OA

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Re: sqrt n [#permalink] New post 09 Jan 2018, 18:01
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is the ans D?
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Re: sqrt n [#permalink] New post 10 Jan 2018, 01:45
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If you square \((\sqrt{n})^2\) = \(n\)

But of course you must square also quantity A. So, n becomes \(n ^2\)

A = \(n^2\)
B = \(n\)

As youcan see A is bigger. But if n is 1 the two quantities are equal. The answer is D

Hope this heps
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Last edited by Carcass on 10 Jan 2018, 10:50, edited 2 times in total.
Edited the explanation
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Re: sqrt n [#permalink] New post 10 Jan 2018, 10:32
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Carcass wrote:


Are there any missing restrictions on n?
If not, then the correct answer is D

If n = 1 (or n = 0), then the two quantities are equal
If n = 4, then quantity A is greater
If n = 1/4, then quantity B is greater

Cheers,
Brent
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Re: sqrt n [#permalink] New post 10 Jan 2018, 10:49
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No Brent. Apologize. The answer is D. You are right.

Thank you.

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Re: sqrt n [#permalink] New post 10 Jan 2018, 11:18
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Carcass wrote:
No Brent. Apologize. The answer is D. You are right.

Thank you.

Regards


Phew!
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Re: sqrt n [#permalink] New post 10 Jan 2018, 11:48
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Re: sqrt n   [#permalink] 10 Jan 2018, 11:48
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