Help please, cannot think
Moderators: Section Moderators, Forum Moderators
Help please, cannot think
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
A comic cost20p less than a book. If 4books and 7comics cost £2.23, what is the cost of 1comic.
REALLY THANKFUL
Sutu
Re: Help please, cannot think
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
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
Re: Help please, cannot think
You do NOT need to use algebra for this type of problem.
Re: Help please, cannot think
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
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
Re: Help please, cannot think
OH that makes lots of sense. Thank you all.
Re: Help please, cannot think
Very cheap books and comics.