A train 600 m long can cross an electric pole in 20 sec and then find the speed of the train?  Choices
A) 117 Kmph B) 178 Kmph C) 172 Kmph D) 108 Kmph E) 109 Kmph
Length = Speed * time   Speed = L/T   S = 600/20= 
<gadget id="calculator">600/20</gadget>
<output>30</output>
30 M/Sec   Speed= 30*18/5 (To convert M/Sec in to Kmph multiply by 18/5)   Speed = 108 Kmph   Answer: 108 Kmph
<result>D</result>
A train 600 m long can cross an electric pole in 20 sec and then find the speed of the train?