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If 375y = x2 and x and y are positive integers, then which of the foll

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Joined: 08 Jul 2017
Posts: 38
GMAT 1: 620 Q48 V29
If 375y = x2 and x and y are positive integers, then which of the foll  [#permalink]

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New post 21 Apr 2018, 01:32
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If 375y = x2 and x and y are positive integers, then which of the following must be an integer?

(1) y/15
(2) y/30
(3) y^2/25

(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III only

The question ask for MUST be true option. I think none of the option must be true.
Please any body explain in details.
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Joined: 02 Sep 2009
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Re: If 375y = x2 and x and y are positive integers, then which of the foll  [#permalink]

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New post 21 Apr 2018, 01:34
robu1 wrote:
If 375y = x2 and x and y are positive integers, then which of the following must be an integer?

(1) y/15
(2) y/30
(3) y^2/25

(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I, II, and III only

The question ask for MUST be true option. I think none of the option must be true.
Please any body explain in details.


Discussed here: https://gmatclub.com/forum/if-375y-x-2- ... 11562.html Hope it helps.
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Re: If 375y = x2 and x and y are positive integers, then which of the foll   [#permalink] 21 Apr 2018, 01:34
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If 375y = x2 and x and y are positive integers, then which of the foll

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