A train 300 m long, running with a speed of 54 km/hr will pass a tree in? Choose the correct option:
A) 17 sec  B) 16 sec  C) 20 sec  D) 14 sec  E) 12 sec
Speed =54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 m/sec   Time taken= 300 * 1/15= 
<gadget id="calculator">300 * 1/15</gadget>
<output>20</output>
20 sec   Answer: 20 sec
<result>C</result>
A train 300 m long, running with a speed of 54 km/hr will pass a tree in?