SOLUTION: Hi Bob was given some books. He sold all the books. Each book was sold at $ 8.90. For every 5 books sold a book was given free. 2/3 of the books were sold in sets of 5 books. He c

Question 1197115: Hi
Bob was given some books. He sold all the books. Each book was sold at $ 8.90. For every 5 books sold a book was given free. 2/3 of the books were sold in sets of 5 books. He collected $1174.80 altogether. How many cups were there at first.
Thanks
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
This is contradictory:

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He sold all the books. Each book was sold at $ 8.90. For every 5 books sold a book was given free.
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