Correct Answer: D
Explanation:
A Bus Averages 40 kilometer per gallon of fuel. Bus B averages 50 kilometers per gallon of fuel. If the price of fuel is $3 per gallon, how much less would an 800-kilometer trip cost for bus B than for Bus A?
Bus A consumption for 800 kilometers = 800/40 = 20 gallons
Bus B consumption for 800 kilometers = 800/50 = 16 gallons
Less consumption = 20 -16 = 4
Less cost = 4 × 3 = 12