Question

A truck driver travels at an average speed of 70 mph on a 230 mile trip to pick up a load of three and return trip with the truck fully loaded the average speed of 55 mph what is the average speed for the round-trip

Answer 1

Answer:

Step-by-step explanation:

Average speed = total distance traveled/total time taken

time for first leg of trip =200/55 hrs

time for second leg of trip = 200/40 hours

so average speed = 400/(200/55 + 200/40)

=46.3 mph