Distance between two stops X and Y is 1500km A bus covers the journey from X to Y at 80kmph and retu......

Distance between two stops X and Y is 1500km. A bus covers the journey from X to Y at 80kmph and returns back to Y with a uniform speed of 60 kmph. Find the average speed of the bus during the whole journey?

Required average speed = (2xy/x+y)kmph
= (2 x 80 x 60)/(80+60) kmph
= 68.57kmph

By: bhavesh kumar singh