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Is 2x a multiple of y?

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Is 2x a multiple of y? [#permalink] New post 30 May 2012, 13:38
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Question Stats:

36% (02:11) correct 63% (00:53) wrong based on 1 sessions
Is 2x a multiple of y?

(1) 2x+2 is a multiple of y
(2) y is a multiple of x
[Reveal] Spoiler: OA
Senior Manager
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Joined: 30 Aug 2009
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Location: India
Concentration: General Management
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Kudos [?]: 65 [0], given: 5

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Re: Is 2x a multiple of y? [#permalink] New post 31 May 2012, 01:24
kashishh wrote:
Is 2x a multiple of y?

(1) 2x+2 is a multiple of y
(2) y is a multiple of x


stmnt1:

If y= 1 x=2 then 2x+2 = 6 and multiple of y. 2x =4 and multiple of y
but if y=3 and x=2 then 2x+2=6 and multiple of y but 2x=4 and not a multiple of y. Hence insuff

stmnt 2:

y = 2 and x= 1 then 2x is multiple of y
y= 3 and x= 1 then 2x is not multiple of y. Hence insuff

taking together
x=1 and y =2 we have y is multiple of x, 2x+2 = 4 multiple of y and 2x= 2 is multiple of y (2) .
x=1 and y =4 we have y is multiple of x, 2x+2 = 4 multiple of y but 2x= 2 is not multiple of y (4)

Hence E
Re: Is 2x a multiple of y?   [#permalink] 31 May 2012, 01:24
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