标题: PREP一道，不解 [打印本页]
作者: fankser 时间: 2010-1-8 07:28 标题: PREP一道，不解
IF drama club and music club are combined, what percent of combined membership will be male?
1.of the 16menbers of the drama club, 15 are male
2.of the 20 members of the club, music 10 are male
为什么答案是E啊？
作者: dimder 时间: 2010-1-8 21:33
因为可能有人同时参加drama和music club
作者: fankser 时间: 2010-1-9 07:01
我擦。。我承认我火星了
多谢LS
作者: jasnoyang 时间: 2010-1-10 07:08
同意!!
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