The distance an automobile can travel in h hours at an average rate of 50 miles an hour is found y the formula d=50h. Problem: A car was driven for 3 hours. The driver then stopped 3/4 of an hour for lunch. After lunch he drove for 2 and 1/2 hours, then stopped 1/2 hr for a flat tire. After that he resumed driving the car. There is another car that starts from the same place 3 hrs after the first car and overtakes the first in 5hrs. Determine the rate of the second car. How far apart will the cars be 1 and 1/2 hours after the second car starts?