An organization committee of 5 people is drawn from a group consisting of 5 men and 8 women. If the committee must include at least one man, in how many ways can the committee be selected?
Thanks indeed.
SY
Simple Math HKDSE
2012-02-08 7:11 am
回答 (1)
2012-02-08 9:21 am
✔ 最佳答案
All ways - All women ways= (5+8)C5 - 8C5
= 1287 - 56
= 1231 ways
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https://hk.answers.yahoo.com/question/index?qid=20120207000051KK01093