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?	Choose the most appropriate option.
A) 150 m  B) 180 m  C) 200 m  D) 240 m  E) 250 m
Speed =40 km/hr =40×(5/18)=(100/9) m/s Length of the train = (Speed x Time)   =(100/9*18)= 
<gadget id="calculator">(100/9*18)</gadget>
<output>200</output>
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?