Question
A train takes 18 seconds to cross a 120-metre-long
platform. If the speed of the train is 36 km/h, then find the time taken by the train to cross a 240-metre-long bridge.Solution
Let the length of the train be 'x' metres.
And speed of the train = 36 X (5/18) = 10 m/s
So, {(x + 120) /10} = 18
Or, x + 120 = 180
So, x = 60
So, required time = {(240 + 60) /10} = 30 seconds
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