(Class 3 * * * made up 54 copies)-(Class 1, Class 2 made up 38 copies) = Class 3 16 copies.

(Class 3 * * * made up 54 copies)-(Class 2 and Class 3 made up 40 copies) = 65438+ Class 1 04 copies.

(54 books in three classes * * *)-(three classes 16 books+one class 14 books) = 24 books in two classes.