14. (12 points) Li Gang reads a book. On the first day, he read $\frac{1}{5}$ of the book. On the second day, he read 24 pages. On the third day, he read 150% of the total number of pages he read in the first two days. At this point, there is still $\frac{1}{4}$ of the book left to read. How many pages does the book have in total?
【Solution】Solution: $(24+24 \times 150 \%) \div\left(1-\frac{1}{5}-\frac{1}{5} \times 150 \%-\frac{1}{4}\right)$,
$$
\begin{array}{l}
=(24+24 \times 1.5) \div\left(1-\frac{1}{5}-\frac{1}{5} \times \frac{3}{2}-\frac{1}{4}\right), \\
=(24+36) \div\left(1-\frac{1}{5}-\frac{3}{10}-\frac{1}{4}\right), \\
=60 \div \frac{1}{4} \\
=60 \times 4, \\
=240 \text { (pages); }
\end{array}
$$

Answer: The book has a total of 240 pages.