Question

In the US, the fuel economy is measured in miles per gallon. In Canada, the fuel economy is measured in liters per 100 km. If a car gets 30 miles per gallon, how many liters are needed per 100 km?

Answer 1

so, there are 3.785 liters to a US gallon, and there are 1.609 km to 1 mile

so, to convert 30 m/g to l/km
`\bf \cfrac{30mi}{1gallon}\cdot \cfrac{1gallon}{3.785L}\cdot \cfrac{1.609km}{1mi}\implies \cfrac{\boxed{?}}{\boxed{?}}`

simplify away, cancel units as needed