A jogger running at 9 kmph alongside a railway track is 240 meters ahead of the engine of a 120 meter long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?

 

  • Option 1)

     

    3.6 sec

     

  • Option 2)

     

    18 sec

     

  • Option 3)

     

    36 sec

     

  • Option 4)

     

    20 sec

     

  • Option 5)

     

    72 sec

     

Answers (1)

Relative Speed = 45 - 9 => 36 K/hr

Total Distance = 240 + 120 = 360

Time taken to cross = 360/(36 x 5/18) = 36 seconds

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