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# I guess we r running out of Quant ques here....here is one

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VP
Joined: 18 Nov 2004
Posts: 1431

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I guess we r running out of Quant ques here....here is one [#permalink]

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08 Mar 2005, 22:45
00:00

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I guess we r running out of Quant ques here....here is one

If x and y are integers, is x divisible by 3?

1) x-y is divisible by 3.

2) x+y is divisible by 3.

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VP
Joined: 30 Sep 2004
Posts: 1480

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Location: Germany

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09 Mar 2005, 04:35
C) y and x have to be multiple of 3

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VP
Joined: 18 Nov 2004
Posts: 1431

Kudos [?]: 45 [0], given: 0

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09 Mar 2005, 08:58
Yep OA is "C"...good job

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Director
Joined: 05 Jul 2004
Posts: 893

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09 Mar 2005, 18:40
(C)

1. x-y = 3m
=> x = 3m +y..(a)
Not Sufficient
2. x+y = 3n
=> x = 3n - y.. (b)
Not Sufficient

2x=3(m+n)
Since 2x is divisible by 3
So x wil definitely be divisible by 3
So.. (c)

Kudos [?]: 65 [0], given: 0

09 Mar 2005, 18:40
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