Given the stream of consciousness rationale, provide a reasonable question and answer. Rationale: D = 72 * 5/18 = 30 = 600 â€“ 250 = 350m
 The question and answer:
A train 250 m long running at 72 kmph crosses a platform in 30 sec. What is the length of the platform?
Options:
(A) 350m
(B) 200m
(C) 250m
(D) 270m
(E) 300 m
The answer is (A)