There are 6 students A,B,C,D,E,F. In how many ways can they be seated in a line so that C and D do not sit together?

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

There are 6 students A,B,C,D,E,F. In how many ways can a committee of 4 be formed so as to always include C?

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

In how many ways can 6 persons be seated at a round table?

In how may ways can 6 girls and 4 boys be seated in a row so that no two boys are together ?

There are 6 students A,B,C,D,E,F. In hoiw many ways can a committee of 4 be formed so as to always include C but exclude E?

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