A train travels at 72 km/h and crosses a platform of length 150 meters in 30 seconds. Find the length of the train.
Speed of the train = 72 km/h = 72 × (1000/3600) = 20 m/s. Distance covered = speed × time = 20 × 30 = 600 meters. Length of the train = 600 - 150 = 450 meters.
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