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# A certain store sells all maps at one price and all books at

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Director
Joined: 05 Feb 2006
Posts: 899
Followers: 1

Kudos [?]: 54 [0], given: 0

A certain store sells all maps at one price and all books at [#permalink]  04 Jun 2006, 02:38
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A certain store sells all maps at one price and all books at another price. On Monday the store sold 12 maps and 10 books for a total of $38, and on Tuesday the store sold 20 maps and 15 books for a total of$60. At this store, how much less does a map sell for than a book?

A) $0.25 B)$0.5
C) $0.75 D)$1.00
E) $1.25 Director Joined: 09 Oct 2005 Posts: 720 Location: Madrid Followers: 3 Kudos [?]: 14 [0], given: 0 [#permalink] 04 Jun 2006, 04:10 solving simultaneous equations 12M+10B=38 20M+15B=60---->simplifying=>4M+3B=12 from this we can get M=(12-3B)/4 substituting M in first equation 12*{(12-3B)/4}+10B=38 36-9B+10B=38 B=2 M=1.5 2-1.5=0.5 B it is _________________ IE IMBA 2010 [#permalink] 04 Jun 2006, 04:10 Similar topics Replies Last post Similar Topics: A discount electronics store normally sells all merchandise 2 20 Feb 2015, 01:32 1 If you spend$96 and a book stores sells all of its books 9 05 Oct 2012, 11:26
35 A store sells a certain product at a fixed price per unit. A 20 04 Oct 2012, 10:35
A store selling price..... 2 28 Oct 2010, 21:28
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