85+76+84=245 (Ben),
100+78+96=274 (Ben);
1June11October1February1October Total Comics12890103321October.
A:10.3 65438+10.65438+Bookstores sell/kloc-0.07 comic books on average every day.
(3)(32 1+245+274)÷3
=840÷3
=280 (Ben)
A: Bookstores have sold an average of 280 books every day since June 5438+1October 65438+1October 3.
So the answer is: 32 1, 245,274.