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 choice
A) 79.2 km/hr  B) 69 km/hr  C) 74 km/hr  D) 61 km/hr  E) 50 km/hr
let length and speed x   train crosses the post in 8 sec   x=8v=train crosses the platform in 20 sec =&gt; x+264=20v   v=264/12= 
<gadget id="calculator">264/12</gadget>
<output>22</output>
22m/s   22* 18/5= km/hr = 79.2 km/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