SOLUTION: Ten sets of twins (20 people) are applying for 3 committee positions. If no sets of twins are allowed on a committee, how many ways can the committee be chosen?

Question 1117956: Ten sets of twins (20 people) are applying for 3 committee positions. If no sets of twins are
allowed on a committee, how many ways can the committee be chosen?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

The members of the committee go from different twin sets.


So, there are   choices between the sets of twins, and then 2*2*2 choices inside each twin set.


The total number of ways is   =  = 1080.

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