Some question: 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
Some stream of consciousness:
D = 72 * 5/18 = 30 = 600 250 = 350m The answer: (A).