Speed Time and Distance Problem Below.

Question

Two cars are going in opposite directions, leaving the town at the same time. If the average speeds of the car are 65 mph and 55 mph, how long does it take for the distance between the cars to become 300 miles?

Answer 1

They both travel for the same amount of time t in hours, so

 

65t + 55t = 300

 

120t = 300

 

t = 300/120 hrs = 2.5 hrs

 

Test the answer.