Question

Metric countries rate the fuel efficiency of a car by the number of liters of gasoline required to drive 100 kilometers. If a car takes 15 liters per 100 kilometers, what is its efficiency in miles per gallon? Use the conversions 1gal=3.7854 L and 1 mile = 1.6 km

Answer 1

First we calculate the efficiency in liters over kilometers so:

Now we can convert the units like