The date when the book needs to be returned. If you look at page x every day: Borrowing time = 232 pages/x pages/day Return date = borrowing time + 1 day Since you can only borrow the book for 8 days, you need to return the book 1 day earlier, which is the end of the 7-day return date. He also needed to know the number of pages he had read in five days: 232 pages/5 days = 46 pages/day Therefore, the number of pages he read every day was: 46 pages/day = 23 pages/day Therefore, the number of pages he had read in the past five days was: 23 pages/day x 5 days = 115 pages The average number of pages he read every day was: 115 pages/5 days = 23 pages/day Answer:(1) I read an average of 23 pages a day. (2)He clearly had to return 160 pages on the sixth day (46 pages/day x 6 days), and the return date was the end of the fourth day.