A train passes a station platform in 34 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
Pick:
A) 276 m  B) 279 m  C) 210 m  D) 207 m  E) 202 m
Speed = [54 * 5/18] m/sec   = 15 m/sec.   Length of the train = (15 * 20)= 
<gadget id="calculator">(15 * 20)</gadget>
<output>300</output>
300 m.   Let the length of the platform be x meters.   Then, x + 300 / 34= 15   x + 300 = 510   x =210 m.   Answer: 210 m
<result>C</result>
A train passes a station platform in 34 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?