A 120 meter long train crosses a man standing on the platform in 6 sec. What is the speed of the train?\nOptions:\n(A) 229\n(B) 108\n(C) 278\n(D) 72\n(E) 112
Let's think step by step.
(D)
S = 120/6 * 18/5 = 72 kmph.

Therefore, the answer is (D)