A goods train runs at the speed of 72 km/hr and crosses a 250 m long platform in 30 sec. What is the length of the goods train?	Options.
A) 299 B) 277 C) 350 D) 270 E) 281
Speed = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 m/sec.   Time= 30 sec.   Let the length of the train be x meters.   Then, (x + 250)/30 = 20   x = 350m.   Answer: 350
<result>C</result>
A goods train runs at the speed of 72 km/hr and crosses a 250 m long platform in 30 sec. What is the length of the goods train?