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      Question

      How much time a train 200 metres long running at the

      speed of 72 km/hr take to cross a bridge 180 metres in length?ย  ย  ย  ย  ย 
      A 22 sec. Correct Answer Incorrect Answer
      B 19 sec. Correct Answer Incorrect Answer
      C 28 sec. Correct Answer Incorrect Answer
      D 12 sec. Correct Answer Incorrect Answer

      Solution

      Distance (Length of the train + length of the bridge) = 200 + 180 = 380 Speed of Train = 72 km/hr = 72ร—5/18 ย = 20 m/sec.ย  ย Time = Distance/Speed ย = 380/20 ย = 19 sec.

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