# 15 people apply for a job to be a trainee. Only 5 can be picked. In how many ways can a group of 5 trainees be picked?

##### 1 Answer

Oct 23, 2016

3003

#### Explanation:

This is a Combinations question (picking Trainee 1, 2, 3, 4, 5 is the same as picking Trainee 5, 4, 3, 2, 1) so we can express this as:

And now let's simplify: