A train moves fast a telegraph post and a bridge 264 m long in 8 sec and 20 sec respectively. What is the speed of the train?
Choose the most appropriate option
A) 4  B) 6  C) 7  D) 8  E) 2
45*12 : 54*x = 2: 1   x = 5   12 -5= 
<gadget id="calculator">12 -5</gadget>
<output>7</output>
7   Answer: 7
<result>C</result>
A train moves fast a telegraph post and a bridge 264 m long in 8 sec and 20 sec respectively. What is the speed of the train?