A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

One Answer on this Question

1. total distance to travel the end of the train = 360 + 140 = 500 m
   speed of train 45000m/60min = 750m/min or 750m/60sec
   (500m*60sec)/750m=40sec the time will take to pass

   Reply