I received 7/ 12 of this batch of books for the first time. As a result, I packed 14, leaving 35 books.

112 equals14/7 = 2,35/7 = 5 copies.

All of them

2* 12=24 packages, 5* 12=60 copies.

Every package is

60/(14+11-24) = 60 (Ben)

This batch of books * * * has

60 * (14+11) =1500 (Ben)