(1) According to the data given in the table, it can be seen that Class 3 (1) donated 80 books, Class 3 (2) donated 60 books and Class 3 (3) donated 100 books.
So Class Three (3) donated the most books.
(2)(80+60+ 100)÷3
=240÷3
=80 (Ben)
A: On average, each class donated 80 books.