Question

An English class has read the first 384 pages of their novel.

Answer 1

X - the total number of pages

$75\%x=384 \\ \frac{75}{100}x=384 \\ \frac{3}{4}x=384 \\ x=384 \times \frac{4}{3} \\ x=128 \times 4 \\ x=512$

There are 512 pages in the novel.