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odds and even

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odds and even

by naaga » Fri Feb 27, 2009 9:48 am
. If k is an even integer and p and r are odd integers, which of the following CANNOT be an integer?
(A) r/k

(B) k/p

(C) p/r

(D) kp/r

(E) kr/p
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by dendude » Fri Feb 27, 2009 9:53 am
Should be A) r/k
Odd Num/Even Num will not result in an integer.
All others are possible
B) 6/3
C) 9/3
D) 6*9/3
E) Again, 6*9/3
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by shulapa » Fri Feb 27, 2009 10:01 am
The only way to insure that the numbers won't divide into an integer is to divide an odd number by an even number. A satisfy such condition.
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by Rag_gmat » Fri Feb 27, 2009 12:19 pm
it should A
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by Ian Stewart » Fri Feb 27, 2009 1:01 pm
And if you didn't see the conceptual answer here, you could plug in the simplest odd and even numbers you can think of:

r = p = 1
k = 2

and you'll see that the answer must be A.
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