2. The teacher distributed a stack of books among A, B, C, L, E. $\frac{1}{4}$ of the books were given to $B$, then $\frac{1}{3}$ of the remaining books were given to $C$, and the rest were split equally between $D$ and $E$. If $E$ received 6 books, then the teacher originally had $\qquad$ books.
2. 48