Sudha wants to choose any 9 stamps from a set of 11 different stamps. How many different selections can she make?

By stringing together 9 different coloured beads, how many different bracelets can be made

A student is Instructed to answer any 8 out of 12 questions. How many different ways he can choose the questions?

A boy has 9 trousers and 12 shirts. In how many different ways can be select a trouser and a shirt?

In how many different ways can a garland of 16 different flowers be made?

A student is Instructed to answer any 8 out of 12 questions. How many different ways he can choose the questions so that question no.1 will be included?

How is artifical selection different from natural selection?

If three dice are rolled and we make a set of numbers shown on the three dice. How many different sets are possible?

How many 9- digits numbers of different digits can be formed?