A basket contains 7 apples, of which two are rotten. A sample of three apples is selected at random. In how many ways can two rotten apples be chosen?

Question

A basket contains 7 apples, of which two are rotten. A sample of three apples is selected at random. In how many ways can two rotten apples be chosen?

Answer 1

No of ways 2 rotten apples can be chosen = 3 C 2

 

 

=  3 ! / (1!) (2!)

 

 

=  3