In how many ways can a committee of five persons with a chairperson can be selected from 12 persons?

In how many ways can a tissue grow in size?

In how many ways a committee of 5 members can be selected from 6 men and 5 ladies consisting of 3 men and 2 ladies?

In how many ways can a football team of 11 players be selected from 16 players? How many of these will (i) include 2 particular players (ii) exclude 2 particular players ?

In how many ways can a committee be selected from 15 persons if the committee is to have : 3 members.

In how many ways can a committee be selected from 15 persons if the committee is to have : 13 members.

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

In how many ways can 12 things be equally divided among 4 persons ?

In how many ways can a person invite one or more of his 8 friends to a feast ?

In how many ways can 12 things be equally divided : into 2 heaps ?

In how many ways can 10 things be equally divided : into two heaps ?