A man sitting in a train which is traveling at 30 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.? Pick:
A) 50 kmph	B) 82 kmph	C) 62 kmph	D) 65 kmph	E) 75 kmph
Relative speed = 280/9 m / sec = ((280/9)*(18/5))= 
<gadget id="calculator">((280/9)*(18/5))</gadget>
<output>112</output>
112 kmph.   Speed of goods train= (112 - 30)= 
<gadget id="calculator">(112 - 30)</gadget>
<output>82</output>
82 kmph.   Answer : 82 kmph.
<result>B</result>
A man sitting in a train which is traveling at 30 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.?