Answer: he read 59 pages on Wednesday
Explanation:
Total number of pages in the book is 473 and Raoul has to finish in a week.
The total number of days in a week is 7.
Let x represent the number of pages that he read I'm each day of the week. He decided to read 30 extra pages on Saturday and on Sunday. This means that sum of pages that he read on Saturday is
x + 30 and sum of pages that he read on Saturday is x + 30.
Total number of pages that he read on each of the other five days is 5x
Total number of pages read in the week would be
5x + x + 30 + x + 30 = 7x + 60
Therefore
7x + 60 = 473
7x = 473 - 60 = 413
x = 413/7 = 59