A train passes a station platform in 36 sec and a man standing on the platform in 24 sec. If the speed of the train is 54 km/hr. What is the length of the platform?  Pick:	A) 288	B) 180	C) 881	D) 1277	E) 121
Speed = 54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 m/sec.   Length of the train= 15 * 24= 
<gadget id="calculator">15 * 24</gadget>
<output>360</output>
360 m.   Let the length of the platform be x m . Then,   (x + 360)/36= 15 =&gt; x = 180 m.   Answer: 180
<result>B</result>
A train passes a station platform in 36 sec and a man standing on the platform in 24 sec. If the speed of the train is 54 km/hr. What is the length of the platform?