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PostPosted: Mon Sep 01, 2014 10:06 am 
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Joined: Sat Jun 15, 2013 9:03 pm
Posts: 54
Can somebody help please.
A comic cost20p less than a book. If 4books and 7comics cost £2.23, what is the cost of 1comic.

REALLY THANKFUL
Sutu


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PostPosted: Mon Sep 01, 2014 10:18 am 
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Joined: Wed Mar 20, 2013 1:16 pm
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If the cost of the Book is B, cost of Comic is B - 20

Cost of 4 books = 4B
So cost 7 comics is 7B -140
Total cost = 223 (Given)

Based on the above it works out that B = 33p and Comic = 13p

Hope that helps


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PostPosted: Mon Sep 01, 2014 10:20 am 
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Joined: Mon Feb 12, 2007 1:21 pm
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You do NOT need to use algebra for this type of problem.


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PostPosted: Mon Sep 01, 2014 10:37 am 
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Joined: Wed Dec 14, 2011 9:54 am
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Each Book cost 20p More than a comic

Hence, The cost of 4 books will be 80p more that the cost of 4 comics

So

7 comics and 4 books cost 223 pence which is also the same as

7 comics and 4 comics + 80p = 223 pence

11 comics + 80p = 223 pence

11 comics = 143p

1 comic = 13p


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PostPosted: Mon Sep 01, 2014 11:47 am 
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OH that makes lots of sense. Thank you all.


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PostPosted: Mon Sep 01, 2014 12:06 pm 
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Location: Chelmsford and pleased
Very cheap books and comics. :mrgreen:


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