A train 400 m in length crosses a telegraph post in 16 seconds. The speed of the train is?\nOptions:\n(A) 22 kmph\n(B) 77 kmph\n(C) 54 kmph\n(D) 71 kmph\n(E) 90 kmph
Please answer the following question by reasoning step-by-step.
(E)
S = 400/16 * 18/5 = 90 kmph.

The answer: (E)