A Train 420 Metres Long is Running at a Speed of 80 km/hour. It will Pass a Bridge 180 metres Long in

  1. 15 seconds
  2. 27 seconds
  3. 13.5 seconds
  4. 7.5 seconds
Monis Rasool Professor Asked on 10th November 2015 in Maths.
Add Comment
  • 1 Answer(s)

    Answer is 27 seconds

    Explanation:-
    The length of a train = 420 meters
    The length of a bridge = 180 meters

    Total length covered by the train = 420 + 180
     = 600 meters

    The speed of the train = 80 km/hr
     = 80 x 5/18 m/sec

    Time taken by the train to pass the bridge = 600 x 18/80 x 5 
     = 27 sec

    Then, It will pass a bridge 180 meters long in 27 sec.

    Hence, the answer is (2) 27 seconds

    Monis Rasool Professor Answered on 10th November 2015.
    Add Comment

    Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.