A train running at the speed of 72 km/hr crosses a pole in 9 sec. What is the length of the train? Options.
A) 288	B) 279	C) 277	D) 272	E) 180
Speed = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 m/sec   Length of the train= speed * time = 20 * 9= 
<gadget id="calculator">20 * 9</gadget>
<output>180</output>
180 m   Answer: 180
<result>E</result>
A train running at the speed of 72 km/hr crosses a pole in 9 sec. What is the length of the train?