In what time will a train 100 meters long cross an electric pole, if its speed is 162 km/hr Select the correct option:
A) 8.5 seconds	B) 2.22 seconds	C) 3.5 seconds	D) 2.5 seconds	E) 2.6 seconds
First convert speed into m/sec   Speed = 162*(5/18)= 
<gadget id="calculator">162*(5/18)</gadget>
<output>45</output>
45 m/sec   Time= Distance/speed   = 100/45 = 2.22 seconds   Answer: 2.22 seconds
<result>B</result>
In what time will a train 100 meters long cross an electric pole, if its speed is 162 km/hr