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标题: 一道GWD题，百思不得其解，望牛牛们指点！ [打印本页]

作者: shygirl369 时间: 2006-10-31 12:32
标题: 一道GWD题，百思不得其解，望牛牛们指点！

不好意思，版主，我还是找不到对应的GWD题号，例如这题：

At a garage sale, all of the prices of the items sold were different. If the price of a radio sold at the garage sale was both 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the garage sale?

百思不得其解，望牛牛们指点！

Many thanks!

[此贴子已经被作者于2006-10-31 13:50:42编辑过]

作者: ilffforever 时间: 2006-10-31 16:19

我不是牛牛

<-------radio------->

14 19

14+19+1=34

[此贴子已经被作者于2006-10-31 16:19:43编辑过]

作者: shygirl369 时间: 2006-11-1 00:10
能解释一下吗？对不起，没看懂！谢谢！

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