Five people are going to be seated in a row of seven chairs. How many...
Five people are going to be seated in a row of seven chairs. How many different ways can they be seated?
Answer & Explanation
There are ways of choosing which 5 chairs from the 7 will have people sitting in them.
For each of these ways there are:
5 ways to pick the first person;
4 ways to pick the second person;
etc. f or ways of arranging the people in the chosen seats.
Therefore there are ways of making this seating