Use some thinking to answer the following question. A train 110 meters long completely crosses a 280 meters long bridge in 38 seconds. What is the speed of the train is?
Options:
(A) 32
(B) 45
(C) 40
(D) 66
(E) 09
S = (110 + 280 /38 = 390/38 * 18/5 = 40 So the final answer is (C).