Question: Distance between two stations A and B is 680 km. A train cover the journey from A to B at 40 km per hour

Distance between two stations A and B is 680 km. A train

Distance between two stations A and B is 680 km. A train cover the journey from A to B at 40 km per hour and returns back to A with a uniform speed of 60 km per hour. Find the average speed of the train during the whole journey? 1. 50 km/h 2. 48 km/h 3. 38 km/h 4. 58 km/h 45 km/h 5.

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