A train 100 meters long completely crosses a bridge 300 meters long in 45 seconds, What is the speed of the train?March 9, 2021 AdminIn Mathematics McqsLeave a Comment on A train 100 meters long completely crosses a bridge 300 meters long in 45 seconds, What is the speed of the train? A. 32km/h B. 36km/h C. 40km/h D. 48km/h Answer Correct Answer: A. 32km/h