A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 15 seconds. The speed of the train is?	Choose the most appropriate option:
A) 35
B) 50
C) 88
D) 66
E) 22
Speed of the train relative to man   = (125/15) m/sec = (25/3) m/sec. [(25/3) * (18/5)] km/hr   = 30 km/hr. Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr. x - 5   = 30 ==&gt; x   = 35 km/hr.   35nswer:35
<result>A</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 15 seconds. The speed of the train is?