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

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

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New post 19 Dec 2017, 06:20
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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


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[Reveal] Spoiler: OA

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Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
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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New post 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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There are English and Mathematics books worth $60 and $100 respectivel

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