Peter is reading a 193-page book. He has read three pages more than one-fourth of the number of pages he hasn’t yet read. How many pages has he not yet read?

Answer 1

Let x be the number of pages he hasn't read yet.
Peter has read x/4 + 3 pages.
The total number of pages in the book is x + x/4 + 3 = 193.
Multiplying through the parenthesis we get 4x + x +12 = 772
Combining like terms we get 5x+12=772
Subtracting 12 from both sides we get 5x=760
Dividing both sides by 5 we get x= <<152=152>>152. Answer: \boxed{152}.