In what time will a train 100 meters long cross an electric pole, if its speed is 36 km/hr
Answers:
A) 8.5 seconds	B) 10 seconds	C) 3.5 seconds	D) 2.5 seconds	E) 2.6 seconds
First convert speed into m/sec   Speed = 36*(5/18)= 
<gadget id="calculator">36*(5/18)</gadget>
<output>10</output>
10 m/sec   Time= Distance/speed   = 100/10= 
<gadget id="calculator">100/10</gadget>
<output>10</output>
10 seconds   Answer: 10 seconds
<result>B</result>
In what time will a train 100 meters long cross an electric pole, if its speed is 36 km/hr