A Ship going at the speed of 18 km/hr crosses a light house in 20 seconds. What is the length of the train? Select:	A) 120	B) 150	C) 100	D) 240	E) 200
Speed=(18x5/18)=5 m/sec.   Length of the train=(Speed x Time).   Length of the train=5x20m = 100 m.   Answer: 100
<result>C</result>
A Ship going at the speed of 18 km/hr crosses a light house in 20 seconds. What is the length of the train?