If a committee of 3 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?
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3个人分别来自不同的夫妻,所以可以先选出3对夫妻,即有10种组合。在选好3对夫妻后,每对夫妻中抽出一个,即有23=8种组合,所以最终的可能就是8*10=80种组合
3个人分别来自不同的夫妻,所以可以先选出3对夫妻,即有10种组合。在选好3对夫妻后,每对夫妻中抽出一个,即有23=8种组合,所以最终的可能就是8*10=80种组合
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