Question

A driver of a car stopped at a gas station to fill up his gas tank. He looked at his watch, and the time read exactly 3:40 p.m. At this time, he started pumping gas into the tank. At exactly 3:44, the tank was full and he noticed that he had pumped 9.8 gallons. What is the average rate of flow of the gasoline into the gas tank?

Answer 1

we need to determine how many gallons of gasoline were pumped per minute.

the driver started pumping at 3:40 p.m., and the tank was full at 3:44 p.m. the time elapsed during this period is 4 minutes (3:44 - 3:40 = 4 minutes).

9.8 gallons were pumped during this 4-minute period.

verage rate of flow = Total gallons pumped / Number of minutes

= 9.8 gallons / 4 minutes=2.45

the average rate of flow of gasoline into the gas tank is 2.45 gallons per minute.