A bus travels a distance of 120km with a speed of 40km/h and returns with a speed of30km/h. Calculat the average speed for the entire journey.

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Solution

Distance = 120 km
speed= 40 km / hr
speed = distance / time
time = distance/ speed= 3 hour

for return of train
distance = 120 km
speed = 30 km/ hr
time = 4 hr

average speed = total distance / total time taken

= (120+120)/(3+4)
=34.2 km / hr

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A bus travels a distance of 120km with a speed of 40km/h and returns with a speed of30km/h. Calculat the average speed for the entire journey.

Distance = 120 km speed= 40 km / hr speed = distance / time time = distance/ speed= 3 hour for return of train distance = 120 km speed = 30 km/ hr time = 4 hr average speed = total distance / total time taken = (120+120)/(3+4) =34.2 km / hr

Distance = 120 km
speed= 40 km / hr
speed = distance / time
time = distance/ speed= 3 hour

for return of train
distance = 120 km
speed = 30 km/ hr
time = 4 hr

average speed = total distance / total time taken

= (120+120)/(3+4)
=34.2 km / hr