In what time will a train 100 meters long cross an electric pole, if its speed is 360 km/hr	Choose the correct answer: A) 1 second B) 4.5 seconds C) 3 seconds D) 2.5 seconds E) None of these
Explanation:   First convert speed into m/sec   Speed = 360*(5/18)= 
<gadget id="calculator">360*(5/18)</gadget>
<output>100</output>
100 m/sec   Time= Distance/speed   = 100/100= 
<gadget id="calculator">100/100</gadget>
<output>1</output>
1 second   1 secondnswer: 1 second
<result>A</result>
In what time will a train 100 meters long cross an electric pole, if its speed is 360 km/hr