A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?\nOptions:\n(A) 25 kmph\n(B) 32 kmph\n(C) 40 kmph\n(D) 38 kmph\n(E) 92 kmph
Step-by-step reasoning process below:
(B)
S = (100 + 300)/45 = 400/45 * 18/5 = 32 kmph.

So, the final answer is (B)