172k views
0 votes
There were eighteen people seated on the roller coaster ride. For every two people seated there was one empty seat. How many empty seats are there?

User Steve Wall
by
7.4k points

2 Answers

4 votes
There is 9 empty seats because if you put it like this-

($- are people)( Empty Seat [])

$ $ []
$ $ []
$ $ []
$ $ []
$ $ []
$ $ []
$ $ []
$ $ []
$ $ []
So if there is 2 people in each row there is one empty seat... so for every 2 people there is one empty seat. So you have 9 empty seats for the 18 people riding.
User Thebunnyrules
by
7.7k points
0 votes
9 seats were empty between the two people seated of the 18.
User Maged
by
7.4k points