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A committee contains six professors, three managers, and four coordinators. A subgroup of five is to be selected from the commit
A committee contains six professors, three managers, and four coordinators. A subgroup of five is to be selected from the commit
admin
2019-05-11
17
问题
A committee contains six professors, three managers, and four coordinators. A subgroup of five is to be selected from the committee. If Professor Dr. Wong and Manager Ms. Macy must be included, how many different subgroups can be selected? ________.
选项
答案
165
解析
委员会共有13人,现在其中2人一定要加入五人小组,只需要从剩下11人中选3人,为组合问题,答案为C
11
3
=
=165。
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