Answer:
The answer is 3 hours
Explanation:
The reason being, 65 mi/h can be divided by 650 to equal 10, so it would take 10 hours to get through those 650 miles with your car that drives 65 mi/h
Then we can do the same things with 50, that equals 13. So 13 - 10 = 3. It took the 50 mi/h car 3 more hours to get through 650 miles than the 65 mi/h car!
Hope this helped :)