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If n and k are positive integers, is n/k an even integer?

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If n and k are positive integers, is n/k an even integer? [#permalink] New post 02 Sep 2010, 11:46
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

61% (01:49) correct 39% (00:38) wrong based on 23 sessions
If n and k are positive integers, is n/k an even integer?
(1) n is divisible by 8.
(2) k is divisible by 4.
[Reveal] Spoiler: OA
Senior Manager
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Re: Divisibility DS [#permalink] New post 02 Sep 2010, 12:57
E

Assume n= 24 (divisible by 8) and k = 8 (divisible by 4)

n/k = 3/2

Assume n= 32 (divisible by 8) and k = 8 (divisible by 4)

n/k = 4

So (I) and (II) are together insufficient
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Re: Divisibility DS [#permalink] New post 02 Sep 2010, 13:02
udaymathapati wrote:
If n and k are positive integers, is n/k an even integer?
(1) n is divisible by 8.
(2) k is divisible by 4.


I would go with E


plugin 40/12.

it simplifies to 2*5/3 which is not even an integer. You can also try numbers that answer yes to the question.
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Re: Divisibility DS [#permalink] New post 02 Sep 2010, 13:04
If n and k are positive integers, is n/k an even integer?
(1) n is divisible by 8.
(2) k is divisible by 4.

Explanation
1) n is divisible by 8 --> 8/8 = 1 (odd) 8/3 ,8/5 gives nothing not even an integer
2) k is divisible by 4 --> 25/4 = gives nothing not even an integer

combining both

16/12 --> gives nothing not even an integer

answer E......
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Re: Divisibility DS   [#permalink] 02 Sep 2010, 13:04
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