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标题: 求问涛涛30-15 [打印本页]

作者: mayce 时间: 2006-8-11 18:07
标题: 求问涛涛30-15

Q15:

At a certain bookstore, the regular price of each book is 20 percent less than its list price. If during a sale the price of each book at the store was 15 percent less than its regular price, then the price of a book during the sale was what percent less than its list price?

A. 30%

B. 32%

C. 35%

D. 38%

E. 40%

答案B

我怎么算不出呢？

作者: 端木晴 时间: 2006-8-11 18:38
1-(1-20%)(1-15%)=32%

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