According to the first condition, the ratio of read pages to unread pages is 3: 5, assuming that 3X pages have been read at the beginning and 5X pages are still unread (a total of ***8X pages).
If we read 33 pages according to the second condition, we have read 3X+33 and 5X-33, and it is known that the ratio of read pages to unread pages is 4: 3, then we can get:
(3X+33)/(5X-33)=4/3
To understand the unary equation, we can get
X=2 1,
So we can know that the total number of pages is 8X= 168.
The answer is a *** 168 page ~ ~ ~
%%%% Ask for extra points, approval and thumbs up.