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 3 days |
30 cents a day |
After 3 days |
40 cents a day |
Fabian rented 2 books and was charged $8.20. How many days did he rent the books for?
$1 = 100¢
$8.20 = 8.20 x 100 = 820¢
Amount that Fabian paid for each book
= 820 ÷ 2
= 410¢
Amount that Fabian paid for each book for renting for the first 3 days
= 3 x 30
= 90¢
Additional amount that Fabian paid for each book for renting for additional days
= 410 - 90
= 320¢
Number of additional days that Fabian rented for each book
= 320 ÷ 40
= 8
Total number of days that Fabian rented the books
= 3 + 8
= 11
Answer(s): 11