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# There are English and Mathematics books worth $60 and$100 respectivel

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Math Expert
Joined: 02 Aug 2009
Posts: 5545
There are English and Mathematics books worth $60 and$100 respectivel [#permalink]

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19 Dec 2017, 06:20
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Difficulty:

25% (medium)

Question Stats:

76% (01:52) correct 24% (01:48) wrong based on 59 sessions

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There are English and Mathematics books worth $60 and$100 respectively in an exhibition. If at end of the day, the number of Mathematics book sold were three times the number of English book, which of the following cannot be the revenue generated by sale of these books?

(A) 1080
(B) 2880
(C) 3600
(D) 4380
(E) 6120

New Question testing number properties
[Reveal] Spoiler: OA

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Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

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Re: There are English and Mathematics books worth $60 and$100 respectivel [#permalink]

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19 Dec 2017, 06:29
chetan2u wrote:
There are English and Mathematics books worth $60 and$100 respectively in an exhibition. If at end of the day, the number of Mathematics book sold were three times the number of English book, which of the following cannot be the revenue generated by sale of these books?
(A) 1080
(B) 2880
(C) 3600
(D) 4380
(E) 6120

New Question testing number properties

Let number of English book sold be $$x$$, so number of maths book sold $$=3x$$. Here $$x$$ is a positive integer

Total revenue $$=60*x+100*3x=360x$$

So Revenue generated will be a multiple of $$360$$. Out of the options only $$4380$$ is not a multiple of $$360$$

Option D
Re: There are English and Mathematics books worth $60 and$100 respectivel   [#permalink] 19 Dec 2017, 06:29
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