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标题: OG350 [打印本页]

作者: falcons 时间: 2005-7-22 06:38 标题: OG350

A store currently charges the same price for each towel that it sells.If the current price of each towel were to be increased by $1,10 fewer of the towels could be bought for $120,excluding sales tax. What is the current price of each towel?

麻烦哪位NN帮我翻译题目，我怎么看不出来，哪一句的意思是改变前后的乘积都是120啊？

作者: mikejia 时间: 2005-7-22 06:54

毛巾贵1刀，用同样120刀只能买比以前少10条。

作者: himba 时间: 2005-7-22 12:55

120/X=120/(1+X) + 10

得X＝3

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