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?

4.There are 6 students A,B,C,D,E,F a) In how many ways can they be seated in a line so that C and D do not sit together (b) In how many ways can a committee or 4 be formed so as to always (c) In how many ways can a committee of 4 be formed so as to always include C but exclude E?

4.There are 6 students A,B,C,D,E,F a) In how many ways can they be seated in a line so that C and D do not sit together (b) In how many ways can a committee or 4 be formed so as to always (c) In how many ways can a committee of 4 be formed so as to always include C but exclude E?

In how many ways can six students be seated in a line so that two particular students do not sit together?

In how many ways can 8 students be seated in : a line ?

In how many ways can 5 students be seated on a bench?

In how many ways 4 boys and 6 girls be seated in a line so that no two boys may sit together ?

In how many ways can 8 persons be seated at a round table so that 2 particular persons sit together?

In how many ways can 5 boys and 5 girls sit in a circle so that no two boys 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