作者bbb123 (bbb123)
看板GMAT
标题[机经] Math JJ 153,174,204
时间Thu Oct 8 22:03:54 2009
204.(与153,174同)
24人对产品的4个特性(features)进行评价。
评价分别有excellent, good, so so(具体用词不记得了) not decided,
问说excellent or Good on the same two features, 是否至少有12人
1）exactly 10 people say excellent on 2 features
2）exactly 12 people say good on 3 features
请问一下这题的思路是???
题目作者选E
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