A train 250 m long running at 72 kmph crosses a platform in 30 sec. What is the length of the platform?	Choose the correct option.
A) 350m B) 200m C) 250m D) 270m E) 300 m
D = 72 * 5/18 = 30 = 600 â€“ 250 = 350m   350mNSWER:350m
<result>A</result>
A train 250 m long running at 72 kmph crosses a platform in 30 sec. What is the length of the platform?