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If x and y are positive integers such that x = 5y + 10, what is the gr

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If x and y are positive integers such that x = 5y + 10, what is the gr [#permalink]

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New post 01 Sep 2017, 23:50
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A
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C
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E

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88% (00:25) correct 13% (00:00) wrong based on 8 sessions

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If x and y are positive integers such that x = 5y + 10, what is the greatest common divisor of x and y?

(1) x = 10u, where u is an integer
(2) y = 10z, where z is an integer
[Reveal] Spoiler: OA

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Re: If x and y are positive integers such that x = 5y + 10, what is the gr [#permalink]

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New post 01 Sep 2017, 23:53
B should be the answer. (2) is sufficient but (1) is not

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Re: If x and y are positive integers such that x = 5y + 10, what is the gr [#permalink]

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New post 02 Sep 2017, 03:34
bkpolymers1617 wrote:
If x and y are positive integers such that x = 5y + 10, what is the greatest common divisor of x and y?

(1) x = 10u, where u is an integer
(2) y = 10z, where z is an integer


This is a copy of the following question: https://gmatclub.com/forum/if-x-and-y-a ... 26743.html

Hope it helps.
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Kudos [?]: 124441 [0], given: 12078

Re: If x and y are positive integers such that x = 5y + 10, what is the gr   [#permalink] 02 Sep 2017, 03:34
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