Final answer:
The man will take 66.5 days to finish reading the book by reading two chapters per day.
Step-by-step explanation:
To find out how long it will take for the man to finish reading the book, we need to calculate the total number of days. We know that he reads two chapters per day, and each chapter has 6 pages. So, the total number of pages he reads per day is 2 * 6 = 12 pages.
To find out the total number of days it will take, we divide the total number of pages in the book (798) by the number of pages he reads per day (12): 798 / 12 = 66.5.
Therefore, it will take the man 66 and a half days to finish reading the book.