In what time will a train 200 m long cross an electric pole, it its speed be 144 km/hr? Choose the correct choice from the following answers:
A) 2.0 sec
B) 2.7 sec
C) 3.5 sec
D) 5.0 sec
E) 9.5 sec
Speed = 144 * 5/18= 
<gadget id="calculator">144 * 5/18</gadget>
<output>40</output>
40 m/sec   Time taken= 200/40= 
<gadget id="calculator">200/40</gadget>
<output>5</output>
5.0 sec.   Answer: 5.0 sec
<result>D</result>
In what time will a train 200 m long cross an electric pole, it its speed be 144 km/hr?