In what time will a train 150 m long cross an electric pole, it its speed be 144 km/hr? Choose one
A) 2.55 sec B) 2.9 sec C) 1.3 sec D) 3.75 sec E) 1.8 sec
Speed = 144 * 5/18= 
<gadget id="calculator">144 * 5/18</gadget>
<output>40</output>
40 m/sec   Time taken= 100/40   = 3.75 sec.   Answer:3.75 sec
<result>D</result>
In what time will a train 150 m long cross an electric pole, it its speed be 144 km/hr?