What will be the length of the mini-train, if it crosses a pole in 3 sec while travelling at a speed of 75 kmph? Choose the correct answer.
A) 60 m  B) 65 m  C) 63.5 m  D) 64 m  E) 62.5 m
62.5 mxplanation:   D = 75 * 5/18 * 3= 
<gadget id="calculator">75 * 5/18 * 3</gadget>
<output>125/2 = around 62.5</output>
62.5 m   Answer: Option 62.5 m
<result>E</result>
What will be the length of the mini-train, if it crosses a pole in 3 sec while travelling at a speed of 75 kmph?