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 54 km/hr, what is the length of the platform?  Choose the correct answer: A) 29 B) 77 C) 28 D) 10 E) 12
lb = 150   2(l + b) = 50 =&gt; l + b = 25   l – b = 5   l = 15 b = 10   Answer:10
<result>D</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 54 km/hr, what is the length of the platform?