In how many ways 3 boys and 15 girls can sits together in a row such that between any 2 boys at least 2 girls sit.

In how many ways 5 boys and 4 girls can be seated in a row so that no two girls are together.

In how many ways can 5 boys and 3 girls sit in a row so that no two girls are together ?

In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together?

In how many ways five persons can stand in a row ?

In how many ways 5 persons can be seated in a row ?

The number of ways in which 5 boys and 3 girls be seated in a row so that each girl is between two boys is

In a class of 10 boys and 6 girls, a team of 8 has to be formed with atleast 4 boys and atleast 4 girls with the condition that two girls are always included in the team. In how many ways the selection can be made?

In how many ways can a team of 3 boys and 3 girls be selected from 5 boys and 4 girls?