A car is traveling from point A to point B. Point A and point B are 30 miles apart. A car travels 30 miles an hour from point A to point B and then goes back to point A. How fast does the car have to go back to average 60 miles an hour?

Hi Matt,

Well, let's see... the total distance from A to B and back is 60 miles. The car already took an hour to go from A to B. So, no matter how fast he goes from B to A, he will have traveled 60 miles in more than one hour.

Go to Math Central