A train travels some distance at a constant speed. If the speed of the train would have increased by 15 km/h * r , then it would have required 2 hours less. But if the speed of the train would have decreased by 5 km then to cover the same distance it would have required 1 hour more. Find the distance covered by the train. (a) 120 km (b) 240 km (c) 360 km (d) 400 km
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Distance covered by train is 360km