Question
A train running with a speed of 99 km/hr can cross a
pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.Solution
Speed of the train = 99 × (5/18) = 27.5 m/sec Length of the train = 27.5 × 13 = 357.5 metres Let the length of the platform be ‘x’ metres Therefore, 357.5 + x = 27.5 × 17 Or, x = 467.5 – 357.5 = 110 metres
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