A 300 m long train crosses a platform in 36 sec while it crosses a signal pole in 18 sec. What is the length of the platform?
Choose the correct choice from the following.
A) 288 B) 300 C) 889 D) 276 E) 234
Speed = 300/18 = 50/3 m/sec.   Let the length of the platform be x meters.   Then, (x + 300)/36 = 50/3   3x + 900 = 1800 =&gt; x = 300 m.   Answer:300
<result>B</result>
A 300 m long train crosses a platform in 36 sec while it crosses a signal pole in 18 sec. What is the length of the platform?