Question

Suppose a car has a rating of 4.8 gallons per 100 miles. What is the miles-per-gallon rating of this car?

Answer 1

The miles-per-gallon rating of this car is 20.83.

Explanation:

This question can be solved by a rule of three.

What is the miles-per-gallon rating of this car?

How many miles for 1 gallon?

4.8 gallons are used for 100 miles. So

4.8 gallons - 100 miles

1 gallon - x miles

`4.8x = 100`

`x = (100)/(4.8)`

`x = 20.83`

The miles-per-gallon rating of this car is 20.83.