In what time will a train 110 m long cross an electric pole, it its speed be 144 km/hr?	Choose one:
A) 2.35 sec  B) 2.85 sec  C) 7.5 sec  D) 2.75 sec  E) 1.5 sec
Speed = 144 * 5/18= 
<gadget id="calculator">144 * 5/18</gadget>
<output>40</output>
40 m/sec   Time taken= 110/40= 
<gadget id="calculator">110/40</gadget>
<output>11/4 = around 2.75</output>
2.75 sec.   Answer:2.75 sec
<result>D</result>
In what time will a train 110 m long cross an electric pole, it its speed be 144 km/hr?