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On a 200 km track, a train travels the first 50 km at a uniform speed of 40 km/h. How fast the train must travel the next 150 km so aa to maintain the average speed of 60 km/h for the whole journey

Answer» On a 200 km track, a train travels the first 50 km at a uniform speed of 40 km/h. How fast the train must travel the next 150 km so aa to maintain the average speed of 60 km/h for the whole journey


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