A 300 meter long train crosses a platform in 54 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform? Choose the correct option:
A) 99 B) 289 C) 350 D) 882 E) 600
Speed = [300 / 18] m/sec = 50/3 m/sec.   Let the length of the platform be x meters.   Then, x + 300 / 54 = 50/3   3(x + 300) = 2700 è x = 350m.   Answer: 600
<result>E</result>
A 300 meter long train crosses a platform in 54 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?