A train 200 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?
Options:
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50 Now, let's think a bit. Some random thoughts:
S = (200 + 300)/45 = 500/45 * 18/5 = 40
The final answer: (D).