Off topic:How to calculate average of each column and the data in separate file?

Question

[sadstudent]

Hi all,

I would like to find the average of the first two columns in each file and divide the values (Column 2 / Column1). Below shows the example of my intended output :

File1:
 A B
 1 2 
 4 5 
 7 8 

File2:
 A B 
 2 3 
 5 6 
 8 9

Desired output :
File1 1.25
File2 1.125

Thank you