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标题: 问一道prep数学题 [打印本页]

作者: NYUchaser 时间: 2007-12-29 20:48
标题: 问一道prep数学题

Are at least 10 percent of the people in Country X who are 65 years old or older employed?

(1) In Country X, 11.3 percent of the population is 65 years old or older

(2) In Country X, of the population 65 years old or older, 20 percent of the men and 10 percent of the women are employed.

Answer: B

这道题怎么想啊？

作者: chonheinrich 时间: 2007-12-29 20:52

条件一，无关。

条件二，如果10%的65+男人和10%的65+女人被雇佣，则有10%的65+被雇佣。现在有20%的男人，还更多。

作者: chonheinrich 时间: 2007-12-29 20:52

help urself.

[此贴子已经被作者于2007-12-29 20:53:14编辑过]

作者: NYUchaser 时间: 2007-12-29 21:35

谢谢美女，我把题目看错了，所以绕进了死胡同！～

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