A man sitting in a train which is traveling at 55 kmph observes that a goods train, traveling in opposite direction, takes 10 seconds to pass him. If the goods train is 320 m long, find its speed	Choose the correct choice from the following answers:
A) 52 kmph B) 56 kmph C) 60 kmph D) 62 kmph E) 72 kmph
Explanation:   Relative speed = 320/10 m / sec = ((320/10)×(18/5)) kmph = 115 kmph.   Speed of goods train = (115 - 55)= 
<gadget id="calculator">(115 - 55)</gadget>
<output>60</output>
60 kmph   Answer: Option 60 kmph
<result>C</result>
A man sitting in a train which is traveling at 55 kmph observes that a goods train, traveling in opposite direction, takes 10 seconds to pass him. If the goods train is 320 m long, find its speed