Posted by dave on Monday, July 26, 2010 at 12:07am.
2 committees with one teacher left over
Ways to choose 2 teachers from 5:
5!/[2!(3!)] = 5*4/2 = 10
ways to choose 3 students from 6
6!/[3!(3!)] = 6*5*4 /(3*2) = 20
10*20 = 200
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