A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 108 km/hr, what is the length of the platform?	Choose the most appropriate option.
A) 338 B) 240 C) 287 D) 267 E) 480
Speed = (108 * 5/18) m/sec = 30 m/sec. Length of the train = (30 x 20)m = 600 m. Let the length of the platform be x meters. Then, (x + 600)/36 = 30 ==&gt; x + 600 = 1080 ==&gt;   x = 480 m.   Answer:480
<result>E</result>
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 108 km/hr, what is the length of the platform?