A train 200 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 20 seconds. The speed of the train is? Answers:	A) 36	B) 50	C) 88	D) 66	E) 23
Speed of the train relative to man   = (200/20) m/sec = 5 m/sec. [5 * (18/5)] km/hr   = 18 km/hr. Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr. x - 5   = 18 ==&gt; x   = 23 km/hr.   Answer:23
<result>E</result>
A train 200 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 20 seconds. The speed of the train is?