A man sitting in a train which is traveling at 50 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	Choose the correct option:
A) 52 kmph
B) 56 kmph
C) 58 kmph
D) 62 kmph
E) 72 kmph
Explanation:   Relative speed = 280/9 m / sec = ((280/9)×(18/5)) kmph = 112 kmph.   Speed of goods train = (112 - 50)= 
<gadget id="calculator">(112 - 50)</gadget>
<output>62</output>
62 kmph   Answer: Option 62 kmph
<result>D</result>
A man sitting in a train which is traveling at 50 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