Question

Assuming the car consumed 15 gallons of gasoline in the last 95 miles of the journey (Not on the graph. This happens after the second refill), how many more gallons of gasoline is in the tank at the end of the journey than at the beginning of the journey (also assume that no more gasoline was filled in)?

• A. 5 Gallons
• B. 10 Gallons
• C. 15 Gallons
• D. 20 Gallons

Answer 1

The correct option is C 15 Gallons


In the last 95 miles, 15 gallons of gasoline is used up.

Hence, 45 - 15 = 30 gallons of gasoline is still in the tank.

Since, the car started initially with 15 gallons of gasoline in the tank, the car has 30 - 15 = 15 gallons of gasoline more in the end of the journey than at the beginning.