题目信息
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 $38.00, and on Tuesday the store sold 20 maps and 15 books for a total of $60.00. At this store, how much less does a map sell for than a book?
A:$0.25
B:$0.50
C:$0.75
D:$1.00
E:$1.25
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正确答案：
B:$0.50
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