A train 200m long passes a standing man in 20 seconds. What is the speed of the train?
Options
A) 30km/hr B) 36km/hr C) 42km/hr D) 50km/hr E) 32km/hr
Speed of the train = 200/20* 18/5= 
<gadget id="calculator">200/20* 18/5</gadget>
<output>36</output>
36km/hr   Answer is 36km/hr
<result>B</result>
A train 200m long passes a standing man in 20 seconds. What is the speed of the train?