The Distribution of seats in B.A are as follows:

 

1) Economics + Math=15 seats

 

2) Economics + Geography=20 seats

 

3) Geography + Mathematics=15 seats

 

4) History + Economics=10 seats

 

5) History + Geography=60 seats

 

6) History + Pol. Sc.= 60 seats

 

7) Pol Sc. + Geography = 50 seats

 

8) Pol Sc. + Mathematics = 10 seats