A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is: Pick
A) 45 km/hr
B) 50 km/hr
C) 54 km/hr
D) 55 km/hr
E) 59 km/hr
Speed of the train relative to man =	125	m/sec   10   =	25	m/sec.   2   =	25	x	18	km/hr   2	5   = 45 km/hr.   Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.   x - 5 = 45 x = 50 km/hr.   ANSWER:50 km/hr
<result>B</result>
A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is: