A train 400 m long can cross an electric pole in 20 sec and then find the speed of the train?  Choose the correct choice:
A) 72	B) 67	C) 28	D) 26	E) 27
Length = Speed * time   Speed = L/T   S = 400/20= 
<gadget id="calculator">400/20</gadget>
<output>20</output>
20 M/Sec   Speed= 20*18/5 (To convert M/Sec in to Kmph multiply by 18/5)   Speed = 72 Kmph   72nswer:72
<result>A</result>
A train 400 m long can cross an electric pole in 20 sec and then find the speed of the train?