Distance between two stations A and B is 778km. A train covers the jou – McqOptions

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1.	Distance between two stations A and B is 778km. A train covers the journey from A to B at 84km per hour and returns back to A with a uniform speed of 56km per hour. Find the average speed of train during the whole journey.
A.	60 km/hr
B.	30.5 km/hr
C.	57 km/hr
D.	67.2 km/hr
Answer» E.

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