Question
Length of a train, whose speed is 45 km/h, is 225
metres. Find the time taken (in seconds) by train to cross a bridge of length 375 metres.Solution
Speed of train = 45 km/h = 45 × (5/18) = 12.5 m/s
Required time = (225 + 375) ÷ 12.5 = 600 ÷ 12.5 = 48 seconds
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