A train is running at a speed of 40 km/hr and it crosses a post in 18 seconds. What is the length of the train?  Answers:	A) 300 m	B) 400 m	C) 200 m	D) 100 m	E) 700 m
Speed=40 km/hr =40Ã—5/18=100/9 m/s   Time =18 seconds   Distance 200 movered   =100/9Ã—18   =200 m   Therefore, length of the train =200 m   Answer: 200 m
<result>C</result>
A train is running at a speed of 40 km/hr and it crosses a post in 18 seconds. What is the length of the train?