A non stop bus goes from one station to another station with a speed of 54 km/hr . The same bus returns from the second station to one station with a speed if 36 km/hr . Find the average speed of the bus for the entire journey
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Average speed = total distance/ total time
= 54+36/1+1= 90/2=45km/h
= 54+36/1+1= 90/2=45km/h
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