Question

For every five adulto on the bue there are 2 children. There are 18 children on the bus. How many adults are there?

Answer 1

The child-adult ratio in the buss is 2:5, you can express it as a fraction

`(2)/(5)`

To determine the number of adults there are, when there are 18 kids in the bus, multiply the number of kids by the determined fraction

`(2)/(5)\cdot18=45`

There are 45 adults on the bus