A train passes a station platform in 46 sec and a man standing on the platform in 16 sec. If the speed of the train is 54 km/hr. What is the length of the platform?	Choose the correct choice from the following choices:
A) 227
B) 240
C) 460
D) 450
E) 455
Speed = 54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 m/sec.   Length of the train= 15 * 16= 
<gadget id="calculator">15 * 16</gadget>
<output>240</output>
240 m.   Let the length of the platform be x m . Then,   (x + 240 )/46= 15=&gt; x = 450 m.   Answer:450
<result>D</result>
A train passes a station platform in 46 sec and a man standing on the platform in 16 sec. If the speed of the train is 54 km/hr. What is the length of the platform?