Question
A train 275 m long running at 72 km/hr takes 45 seconds
to cross a bridge. The length of the bridge isSolution
Speed of train = 72 km/hr = 72 × (5/18) = 20 m / sec If the length of bridge be x metre, then ⇒ 20 = (275 + x)/45 ⇒ 275 + x = 900 ⇒ x = 900 – 275 = 625 metre
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