A man sitting in a train which is travelling at 60 kmph observes that a goods train, travelling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed?  Pick
A) 52 kmph. B) 62 kmph. C) 72 kmph. D) 80 kmph. E) None
Solution   Relative Speed	= (280 / 9)m/sec   = (280/9 x 18/5)   = 112 kmph.   Speed of the train	= (112 - 60)= 
<gadget id="calculator">(112 - 60)</gadget>
<output>52</output>
52 kmph.   52 kmph.nswer 52 kmph.
<result>A</result>
A man sitting in a train which is travelling at 60 kmph observes that a goods train, travelling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed?