- #1

brendan

- 65

- 0

## Homework Statement

9 people, 2 cars can hold 5 people each. only 3 people have licenses.

## Homework Equations

How many different ways can the people be seated into cars?

## The Attempt at a Solution

There are nine people. So number of seats is not a problem.

We must find out how many groups of three people with licenses there can be.

nPr = n!(n-r)!

n = 9

r = 3

nPr= 9!/(9-3)! = 504

How's that look?