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# If x and y are positive integers, which of the following

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Director
Joined: 10 Feb 2006
Posts: 657
Followers: 3

Kudos [?]: 318 [0], given: 0

If x and y are positive integers, which of the following [#permalink]

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24 Nov 2007, 12:51
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If x and y are positive integers, which of the following CANNOT be the greatest common divisor of 35x and 20y?

5
5(x – y)

20x
20y
35x
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GMAT the final frontie!!!.

SVP
Joined: 29 Aug 2007
Posts: 2492
Followers: 65

Kudos [?]: 668 [0], given: 19

Re: GCD - MGMT [#permalink]

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24 Nov 2007, 13:26
alimad wrote:
If x and y are positive integers, which of the following CANNOT be the greatest common divisor of 35x and 20y?

5
5(x – y)

20x
20y
35x

you are yet to post OA on this one.

http://www.gmatclub.com/forum/p399702#399702
SVP
Joined: 05 Jul 2006
Posts: 1512
Followers: 5

Kudos [?]: 212 [0], given: 39

[#permalink]

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24 Nov 2007, 13:40
If x and y are positive integers, which of the following CANNOT be the greatest common divisor of 35x and 20y?

5
5(x – y)

20x
20y
35x

700XY / K = INTIGER IE: 7*2^2*5^2 *XY / K = INTIGER

5(X-Y) IS THE ONE OUT
[#permalink] 24 Nov 2007, 13:40
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# If x and y are positive integers, which of the following

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