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If x and y are integers, is x divisible by 5? (1) xy is divisible by 2

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If x and y are integers, is x divisible by 5? (1) xy is divisible by 2  [#permalink]

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New post 26 Sep 2018, 05:22
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A
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C
D
E

Difficulty:

  25% (medium)

Question Stats:

79% (00:54) correct 21% (00:50) wrong based on 45 sessions

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Re: If x and y are integers, is x divisible by 5? (1) xy is divisible by 2  [#permalink]

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New post 26 Sep 2018, 05:28
From statement 1:

xy=25
If x and y each = 5. Then x is divisible.
If x=1 and y=25. Then no.
Hence insufficient.

From statement 2:

y is divisible by 5. Again y could be 5 or 25.
Insufficient.

Combining both also gives same result.

E is the answer

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Re: If x and y are integers, is x divisible by 5? (1) xy is divisible by 2  [#permalink]

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New post 26 Sep 2018, 10:23
From stat 1 we can get more than 1 value for the variables for ex- x=1, y= 25 and x=5, and y=5 which can give ans as no as well yes to the problem statement hence no sufficient
In stat 2 no information about x is given hence it is also not sufficient.
Together also same reasoning can be given as in stat 1 hence not sufficient.
E should be the correct choice.
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Re: If x and y are integers, is x divisible by 5? (1) xy is divisible by 2   [#permalink] 26 Sep 2018, 10:23
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If x and y are integers, is x divisible by 5? (1) xy is divisible by 2

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