A committee of 7 has to be formed from 9 boys and 4 girls. In how many ways can this be done when the committee consists of:
(i) exactrly 3 girls?
(ii) at least 3 girls
(ii) almost 3 girls?

A committee of 7 has to be formed from 9 boys and 4 girls.In how many ways can this be done when the committee consists of: (i) exactly 3 girls? (ii) atleast 3girls? (iii) atmost 3 girls?

A committee of 2 boys and 2 girls is to be slected from 4 boys and 3 girls . In how many ways can this be done ?

A committee of 6 is to be formed out of 4 boys and 6 girls. In how many ways can it be done so that the girls may not be out numbered?

In how many ways a committee of 5 is to be formed from 6 boys and 4 girls, where the committee contains at least one girl.

A committee of 11 is to be formed from 8 teachers and 12 students of whom 4 are girls. In how many ways this can be done so that the committee contains at least four of either groups (teachers and students) and at least 2 girls and atleast 2 boys are in the committee.

A committee of 5 Students is to be chosen from 6 boys and 4 girls. Find the probability that the committee contains exactly 2 girls.

A committee of 10 is to be formed from 8 teachers and 12 students of whom 4 are girls. In how many ways this can be done so that com the committee contains atleast four of either groups (teachers and students) and atleast 2 girls and atleast 2 boys are in the committee.

In a class there are 20 boys and 15 girls. In how many ways can 2 boys and 2 girls be selected?

There are 5 boys and 3 girls. In how many ways can they be seated in a row so that al the three girls do not sit together