A 300 m long train crosses a platform in 54 sec while it crosses a signal pole in 18 sec. What is the length of the platform?
Select the correct option.
A) 287	B) 350	C) 600	D) 277	E) 122
Speed = 300/18 = 50/3 m/sec.   Let the length of the platform be x meters.   Then, (x + 300)/54 = 50/3   3x + 900 = 2700 =&gt; x = 600 m.   Answer: 600
<result>C</result>
A 300 m long train crosses a platform in 54 sec while it crosses a signal pole in 18 sec. What is the length of the platform?