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

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Intern
Joined: 21 Aug 2011
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If n and k are positive integers, is n/k an even integer? [#permalink]  23 Aug 2011, 23:52
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Difficulty:

25% (low)

Question Stats:

60% (01:49) correct 40% (00:16) wrong based on 40 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
Manager
Joined: 19 Jul 2011
Posts: 100
Concentration: Finance, Economics
Schools: Duke '15
GPA: 3.9
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Kudos [?]: 49 [0], given: 4

Re: A diffcult Math problem [#permalink]  24 Aug 2011, 02:43
The answer is E as n/k can be a fraction.
eg.
8*2=16
4*8=32
16/32=0.5
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Manager
Joined: 16 May 2011
Posts: 205
Concentration: Finance, Real Estate
GMAT Date: 12-27-2011
WE: Law (Law)
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Kudos [?]: 28 [0], given: 37

Re: A diffcult Math problem [#permalink]  24 Aug 2011, 03:13
we have to find n/q:

combined: n=8a and k=4b so

n/k= 8a/4b= 2a/b so n/k= 2a/b if a and b are 2 and 2 the answer is yes=2*2/2=2 (n/k is even) but if a and b are 3 and 2 then 2*3/2=3 (the answer is no. 3 is odd)
Re: A diffcult Math problem   [#permalink] 24 Aug 2011, 03:13
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# If n and k are positive integers, is n/k an even integer?

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