a train passes over a 400 m long Bridge if the speed of the train is 30 metre per second and the train takes 20 seconds to cross the bridge find the length of the train
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a train is 600 meters long
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Let the length of train be L. Total distance required for the train to cross the bridge is,
d = (L + 400) m
The train crosses the bridge with speed 30 m/s in 20 seconds. So,
30 × 20 = L + 400
600 = L + 400
L = 200 m
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