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标题: 弱弱的问：prep里的数学题 [打印本页]

作者: avimi 时间: 2007-3-3 10:50
标题: 弱弱的问：prep里的数学题

If the drama club and music club are combined, what percent of the combined membership will be male?
(1) Of the 16 mumbers of the drama club,15 are male
(2) Of the 20 members of the music club, 10 are male

answer: E

难道不是简单的(15+10)/(16+20)吗？

thank you~

作者: sunshinerab 时间: 2007-3-3 11:16
如果有人即是drama club成员，又是music club成员，会怎样呢？

作者: avimi 时间: 2007-3-3 11:39

谢谢~

这么弱的问题还想不通，唉~~ 最近真是没状态呀~

thank you~~

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