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Math Expert
Joined: 02 Sep 2009
Posts: 47219

At a sale all books were priced equally and all magazines were priced
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10 Sep 2017, 22:37
Question Stats:
81% (00:39) correct 19% (00:34) wrong based on 36 sessions
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Senior Manager
Joined: 02 Jul 2017
Posts: 294

Re: At a sale all books were priced equally and all magazines were priced
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10 Sep 2017, 22:49
price of books =B price of magazines =M Find: price of 3 books and 4 magazines => 3B +4M = ?
(1) At the sale the price of a book was $1.45 more than the price of a magazine. => B = 1.45+M to find total cost we need to know value of 1 of the parameters with above equation =? 3B+4M = 3(1.45+M)+4M = some value in M form. Not sufficient
(2) At the sale the price of 6 books and 8 magazines was $43.70. =>6B+8M = 43.70 => 2(3B+4M)=43.70 =>3B+4M =21.85 . Answer Sufficient
Answer: B




Re: At a sale all books were priced equally and all magazines were priced &nbs
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