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GRE prep club Practice Test Errors

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GRE prep club Practice Test Errors [#permalink] New post 26 Oct 2017, 21:45
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I have found a couple of questions dubious in GRE prep club's practice test. Is there anyone who feels the same?
Here is one of them:

Quant Test -10

Given x, y are integers and (x+y)(x−y)=0(x+y)(x−y)=0 and xy≠0xy≠0


Quantity A
Quantity B
6*\sqrt{\frac{19}{2x^2}}
\sqrt{\frac{342}{y^2}}








Answer (it says): C) Both are equal. How is it possible?
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Re: GRE prep club Practice Test Errors [#permalink] New post 27 Oct 2017, 04:08
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could you please provide me the id of the question ??

Thank you
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Re: GRE prep club Practice Test Errors [#permalink] New post 27 Oct 2017, 05:25
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This is the first question in the test - Question 1 of 20 ID: Q02-88


It makes sense to me since 6*6*19/2 = 342. Therefore 342 = 342. Both sides are equal.

Edit: I see, the issue, it can be easily confused as a root of 6th degree/power instead of 6 times a square root. I fixed it to read more easily.
In the test it was written correctly but just the optics of it could be read both ways.

Thank you for pointing it out!
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Last edited by bb on 27 Oct 2017, 05:33, edited 1 time in total.
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Re: GRE prep club Practice Test Errors [#permalink] New post 27 Oct 2017, 05:49
ID: Q02-88
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Re: GRE prep club Practice Test Errors [#permalink] New post 28 Oct 2017, 04:07
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sandesh10 wrote:
ID: Q02-88

We have fixed the question! It was a fotmatting error.
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Re: GRE prep club Practice Test Errors   [#permalink] 28 Oct 2017, 04:07
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