man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train?	Choose one:	A) 40 km/hr	B) 44 km/hr	C) 42 km/hr	D) 43 km/hr	E) 45 km/hr
if speed of train is x kmph, then   relative speed =(x-8 ) km/hr = (x-8)*5/18 m/sec   (x-8)*(5/18)*30=300   x-8=36   x= 44 km/hr   ANSWER:44 km/hr
<result>B</result>
man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train?