If a train, travelling at a speed of 90 kmph, crosses a pole in 5 sec, then the length of train is?  Answers:  A) 338  B) 125  C) 726  D) 268  E) 171
D = 90 * 5/18 * 5= 
<gadget id="calculator">90 * 5/18 * 5</gadget>
<output>125</output>
125 m   Answer:125
<result>B</result>
If a train, travelling at a speed of 90 kmph, crosses a pole in 5 sec, then the length of train is?