Question
A train running with a speed of 135 km/hr can cross a
pole in 17 seconds and a platform in 27 seconds. Find the length of the platform.Solution
Speed of the train = 135 × (5/18) = 37.5 m/sec Length of the train = 37.5 × 17 = 637.5 metres Let the length of the platform be ‘x’ metres Therefore, 637.5 + x = 37.5 × 27 Or, x = 1012.5 – 637.5 = 375 metres
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