Question

a car travels at a speed of 40 km per hour for 5 hours at 20 km\h for next 3hours then 70 km\h. for next 6. 7 hours what is the average speed of car​

Answer 1

Answer:45.5km/h

Explanation:

Average speed=Total distance /total time

distance=speed*time

Av speed=40*5+20*3+ 70*6.7/  5+3+6.7

                =45.5km/h