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      Question

      A train that is 360 metres long passes a signal post in

      18 seconds. How long will it take to pass a bridge that is 240 metres long?
      A 18 secs Correct Answer Incorrect Answer
      B 20 secs Correct Answer Incorrect Answer
      C 12 secs Correct Answer Incorrect Answer
      D 30 secs Correct Answer Incorrect Answer

      Solution

      ATQ,

      Speed of train = 360 Γ· 18 = 20 m/s Time taken to cross the bridge = (360 + 240) Γ· 20 = 600 Γ· 20 = 30 seconds

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