Question
Length of a train, whose speed is 36 km/h, is 180
metres. Find the time taken (in seconds) by train to cross a bridge of length 120 metres.Solution
Speed of train = 36 km/h = 36 × (5/18) = 10 m/s
Required time = (180 + 120) ÷ 10 = 300 ÷ 10 = 30 seconds
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