The fuel tank in a car holds 20 gallons of gasoline. The car has a fuel efficiency rating of 24 miles per gallon. If the gas tank is full when the family begins, and their destination is 1,600 miles away, what is the least number of times they will have to stop and fill the gas tank to get to their destination?

Mathematics · College · Mon Jan 18 2021

Answered on

Given the statement:

The fuel tank in a car holds 20 gallons of gasoline. The car has a fuel efficiency rating of 24 miles per gallon. 

If the gas tank is full when the family begins, and their destination is 1,600 miles away, determine the least number of times they will have to stop and fill the gas tank to get to their destination.

Solution:

Multiply first 20 with 24, then divide the product to 1600 in order to determine the answer.

= (20)(24)

= 480

= 1600 / 480

= 3.33…

Since we need the exact value, this means that the family needs to fill the gas 4 times. If we equate to 3 times, then they cannot reach their destination.

Final answer:

4 times