A train moves past a post and a platform 264 metre long in 8 seconds and 20 seconds respectively. What is the speed of the train?	Choose the correct option:
A) 79.2 km/hr
B) 69 km/hr
C) 74 km/hr
D) 61 km/hr
E) 55 km/hr
lenghth and speed of the train x m and v m   train crosses the post in 8 sec   x=8v---1)   train crosses the platform in 20 sec   x+264=20v   (2)-(1)+&gt;12v=264   v=264/12= 
<gadget id="calculator">264/12</gadget>
<output>22</output>
22m/s   22 * 18/5 km/hr= 79.2km/hr   79.2 km/hrNSWER 79.2 km/hr
<result>A</result>
A train moves past a post and a platform 264 metre long in 8 seconds and 20 seconds respectively. What is the speed of the train?