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      Question

      A 220 metres long train, travelling at 60 km/h crosses a

      platform in 30 seconds. What is the length of the platform?
      A 280 m Correct Answer Incorrect Answer
      B 360 m Correct Answer Incorrect Answer
      C 270 m Correct Answer Incorrect Answer
      D 150 m Correct Answer Incorrect Answer

      Solution

      ATQ,

      Speed of train = 60 km/h = 60 Γ— (5/18) = 16.67 m/s

      Using, distance = speed Γ— time

      Let the length of the platform be β€˜L’ metres.

      So, 220 + L = 16.67 Γ— 30

      Or, 220 + L = 500

      Or, β€˜L’ = 500 – 220

      Or, β€˜L’ = 280

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