A train takes 2 hr to travel from station A to station B and on its return journey , it takes 3 hr to cover the same distance . If the distance between the two stations is 200 km , calculate the average speed of the train for the whole journey .
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A train takes 2 hr to travel from station A to station B and on its return journey , it takes 3 hr to cover the same distance . If the distance between the two stations is 200 km , calculate the average speed of the train for the whole journey .
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