4 girls and 8 boys are standing together. In how many ways can a 7- person committee be selected from the group if at least 2 girls must be included?
I'll try to answer this....
how many ways can you choose 2 girls ? 4 C 2 = 6 ways
then you ned to choose 5 more people for the committee from the remaining 10 people 10 C 5 = 252 ways
6 x 252 = 1512 ways to form committee
Hmmmmm....that does not seem correct.....