A book rental shop rented out books and the rate of rental charges are shown in the table.
Number of days |
Rates |
After the first 8 days |
30 cents a day |
After 8 days |
40 cents a day |
Neave rented 4 books and was charged $17.60. How many days did he rent the books for?
$1 = 100¢
$17.60 = 17.60 x 100 = 1760¢
Amount that Neave paid for each book
= 1760 ÷ 4
= 440¢
Amount that Neave paid for each book for renting for the first 8 days
= 8 x 30
= 240¢
Additional amount that Neave paid for each book for renting for additional days
= 440 - 240
= 200¢
Number of additional days that Neave rented for each book
= 200 ÷ 40
= 5
Total number of days that Neave rented the books
= 8 + 5
= 13
Answer(s): 13