1. In how many ways a committee of 5 members can be selected consisting of 3 men and 2 women from 6 men and 5 women.
2. How many triangles can be obtained by joining 12 points, five of which are collinear?
3. There are 10 points in a plane, no three of which are in the same straight line excepting 4 points which are collinear. Find the number of straight lines obtained from pairs of these points.
4.How many different selection of 4 books can be made from 10 different books?
5. From a group of 15 cricket players, a team of 11 players is to be chosen. In how many ways this can be done?
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.