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 4 days |
60 cents a day |
After 4 days |
80 cents a day |
Dylan rented 4 books and was charged $25.60. How many days did he rent the books for?
$1 = 100¢
$25.60 = 25.60 x 100 = 2560¢
Amount that Dylan paid for each book
= 2560 ÷ 4
= 640¢
Amount that Dylan paid for each book for renting for the first 4 days
= 4 x 60
= 240¢
Additional amount that Dylan paid for each book for renting for additional days
= 640 - 240
= 400¢
Number of additional days that Dylan rented for each book
= 400 ÷ 80
= 5
Total number of days that Dylan rented the books
= 4 + 5
= 9
Answer(s): 9