In how many ways can the letters of the word ACCEPTANCE be arranged?

Find the number of ways of selecting 6 out of 10 subjects for an examination

In how many ways can a delegation of 3 be chosen from 5 men and 3 women. If at least 1 man and 1 woman must be included?

In how many ways can 9 people be seated if 3 chairs are available?

In how many ways can a committee of 2 women and 3 men be chosen from 6 men and 5 women?