A motor vehicle has a maximum efficiency of 32 mpg at a cruising speed of 40 mph. The efficiency drops at a rate of 0.1 mpg/mph between 40 mph and 50 mph, and at a rate of 0.4 mpg/mphbetween 50 mph and 80 mph. What is the efficiency in miles per gallon if the car is cruising at 50 mph?

Automotive Trades Europeans commonly express gas mileage in “liters per 100 km" (L/100 km), whereas North Americans express mileage in miles per gallon (mi/gal). If a European car has a mileage rating of 6.5 L per 100 km, how would this be expressed in North America?

If you drive 154 miles and use 11 gallons of gas, what is your rate of gas consumption?

A road sweeping truck travels at 10mph when sweeping. Suppose a township in the suburbs has 75 miles of road that need sweeping and one sweeping truck. If the utilization of the truck is 80% (accounting for stops and routing to cover all roads), how long will it take to complete the sweeping?