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# If x and y are integers and 450x = 120y, which of the following [b]mus

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Intern
Joined: 08 Jul 2017
Posts: 38
GMAT 1: 620 Q48 V29
If x and y are integers and 450x = 120y, which of the following [b]mus  [#permalink]

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21 Apr 2018, 01:27
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Difficulty:

(N/A)

Question Stats:

50% (10:24) correct 50% (00:14) wrong based on 4 sessions

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. If x and y are integers and 450x = 120y, which of the following must be an
integer?
(1) xy/60
(2) 15x/4y
(3) 4x/15y

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

Math Expert
Joined: 02 Sep 2009
Posts: 58434
Re: If x and y are integers and 450x = 120y, which of the following [b]mus  [#permalink]

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21 Apr 2018, 01:34
robu1 wrote:
. If x and y are integers and 450x = 120y, which of the following must be an
integer?
(1) xy/60
(2) 15x/4y
(3) 4x/15y

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

Discussed here: https://gmatclub.com/forum/if-x-and-y-a ... 00245.html Hope it helps.
_________________
Re: If x and y are integers and 450x = 120y, which of the following [b]mus   [#permalink] 21 Apr 2018, 01:34
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