A train 100 m long can cross an electric pole in 20 sec and then find the speed of the train?  Pick one: A) 19 Kmph B) 18 Kmph C) 72 Kmph D) 17 Kmph E) 91 Kmph
Length = Speed * time   Speed = L/T   S = 100/20= 
<gadget id="calculator">100/20</gadget>
<output>5</output>
5 M/Sec   Speed= 5*18/5 (To convert M/Sec in to Kmph multiply by 18/5)   Speed = 18 Kmph   Answer: 18 Kmph
<result>B</result>
A train 100 m long can cross an electric pole in 20 sec and then find the speed of the train?