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Last week, bookshop A sold 20% less hardback books than bookshop B

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BSchool Forum Moderator
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Joined: 29 Jan 2015
Posts: 1466
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WE: General Management (Non-Profit and Government)
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Last week, bookshop A sold 20% less hardback books than bookshop B  [#permalink]

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New post 24 Mar 2019, 06:32
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A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

47% (01:35) correct 53% (02:33) wrong based on 17 sessions

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Last week, bookshop A sold 20% less hardback books than bookshop B and sold 120% more paperback books than bookshop B. If the total number of books sold be A is twice the total number of books sold by B, what is the ratio of number of hardback books sold by B to the ratio of number of paperback books sold by B?

(A) 5:6

(B) 6:5

(C) 3:2

(D) 6:1

(E) 1:6
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Joined: 12 Apr 2011
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Re: Last week, bookshop A sold 20% less hardback books than bookshop B  [#permalink]

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New post 24 Mar 2019, 10:41
rohan2345 wrote:
Last week, bookshop A sold 20% less hardback books than bookshop B and sold 120% more paperback books than bookshop B. If the total number of books sold be A is twice the total number of books sold by B, what is the ratio of number of hardback books sold by B to the ratio of number of paperback books sold by B?

(A) 5:6

(B) 6:5

(C) 3:2

(D) 6:1

(E) 1:6


AH = 0.8 BH
AP = 2.2 BP

AH + AP = 2 (BH + BP)
0.8BH + 2.2BP = 2BH + 2BP
0.2BP = 1.2BH
BP/BH = 0.2/1.2 = 1/6

Hence E is the correct answer.
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Re: Last week, bookshop A sold 20% less hardback books than bookshop B   [#permalink] 24 Mar 2019, 10:41
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Last week, bookshop A sold 20% less hardback books than bookshop B

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