A European car manufacturer reports that the fuel efficiency of the new MicroCar is 28.5 km/L highway and 22.0 km/L city. What are the equivalent fuel efficiency rates in miles per gal?
Answer: 67.27 mile / gal for the highway and 51.93 mile / gal
If gas costs $3.50 per gal, how much would it cost to drive 500 miles in the city in this car (assuming the fuel efficiency rating is accurate)?
How to carry out Unit conversions?