A train passes a station platform in 28 seconds and a man standing on the platform in 10 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?	Choose the correct answer
A) 270	B) 277	C) 240	D) 88	E) 112
Speed = [54 * 5/18] m/sec = 15 m/sec.   Length of the train = (15 * 10)= 
<gadget id="calculator">(15 * 10)</gadget>
<output>150</output>
150 m.   Let the length of the platform be x meters.   Then, x + 150 / 28= 15   x + 150 = 420   x = 270 m.   270nswer:270
<result>A</result>
A train passes a station platform in 28 seconds and a man standing on the platform in 10 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?