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      Question

      A train 150 m long running at 36 km/hr takes 50 seconds

      to cross a bridge. The length of the bridge is
      A 300 metre Correct Answer Incorrect Answer
      B 425 metre Correct Answer Incorrect Answer
      C 625 metre Correct Answer Incorrect Answer
      D 350 metre Correct Answer Incorrect Answer

      Solution

      Speed of train = 36 km/hr = 36 Γ— (5/18) = 10 m / sec If the length of bridge be x metre, then β‡’ 10 = (150 + x)/50 β‡’ 150 + x = 500 β‡’ x = 500 – 150 = 350 metre

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