Question

a bus travels of a distance 120 km with a speed of 40 km per hour and returns with a speed of 30 km per hour calculate the average speed of the entire journey

Answer 1

distance = 120 km
speed = 40km/h
time = 3 hour


distance= 120
speed= 3 km/h
time =4 hours


average speed = total distance /total time

AV = 2×120km/3+4hours

Av= 240 km/7hours= 34.28 km/h

Answer 2

34.28 answer for questions