Use the following information to answer questions 18-20.

The gas tank in Mark's car has a fuel capacity of 18 gallons of gasoline. The car averages 24 miles per gallon when driven at highway speeds and 21 miles per gallon when driven at city speeds. Approximately 90% of the 30, 000 miles Mark drives each year are at highway speeds. The average price of Mark's gasoline is $1.699 per gallon.

18. Mark filled his gas tank on Monday. Later that week, the fuel indicator showed 3 gallons of gasoline remaining in the tank. Of the following statements, which best represents the number of miles, m, Mark had driven since filling the gas tank on Monday?

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

According to the question, 15 gallons of oil have been used. If these oils are all driven on high speed, it will take 15×24=360 miles; if these oils are all driven in the city, it will be 15×21=315 miles, so J.