A 300 m long train crosses a platform in 39 sec while it crosses a signal pole in 14 sec. What is the length of the platform?  Answers.
A) 287 m	B) 350 m	C) 267 m	D) 535.71 m	E) 656 m
Speed = 300/14= 150/7 m/sec.   Let the length of the platform be x meters.   Then, (x + 300)/39 = 150/7   =&gt; x = 535.71 m.   Answer:535.71 m
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A 300 m long train crosses a platform in 39 sec while it crosses a signal pole in 14 sec. What is the length of the platform?