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Discussion :: Problems on Trains

  1. How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

    2. A.
    25
    B.
    30
    C.
    40
    D.
    45

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    Answer : Option B

    Explanation :

    Speed of the train relative to man = (63 - 3) km/hr
      = 60 km/hr
     
    = 1-sym-oparen-h1 60 x 5 1-sym-cparen-h1 m/sec
    18
     
    = 1-sym-oparen-h1 50 1-sym-cparen-h1 m/sec.
    3
    Therefore Time taken to pass the man
    = 1-sym-oparen-h1 500 x 3 1-sym-cparen-h1 sec
    50
      = 30 sec.

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