In how many ways can a committee of 4 people can be chosen out of 9 people?
152
116
126
150
none
The number of ways we can form a committee is 9C4 ways, i.e, 126 ways.
In how many ways can a committee of 5 people which contains only teachers be formed?
In how many ways can a committee of 5 people which contains at least 1 clerk be formed?
In how many ways can a committee of 6 people which contains exactly 3 businessmen and 2 sweepers be formed?