A train 100 meters long completely crosses a 300-meter long bridge in 40 seconds.

A train 100 meters long completely crosses a 300-meter long bridge in 40 seconds. What is the speed of the train in km/h?

Quiz

Answer/Solution

36 km/h

Steps/Work

speed = distance / time = (100 + 300)/40 = 400/40 (m/s) * 3600/1000 = 36 km/h
The answer is C.