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      Question

      A train with a length of 230 metres, moving at a speed of

      48 km/h, takes 50 seconds to cross a platform. Find the platform's length.
      A 480.5 m Correct Answer Incorrect Answer
      B 545.5 m Correct Answer Incorrect Answer
      C 436.5 m Correct Answer Incorrect Answer
      D 335.5 m Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the length of the platform be β€˜x’ metres

      Speed of the train = 48 Γ— (5/18) = 13.33 m/s

      ATQ,

      (x + 230) = 13.33 Γ— 50

      Or, (x + 230) = 666.5

      Or, x = 666.5 - 230

      Or, x = 436.5

      Therefore, the length of the platform = 436.5 metres

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