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 6 days |
30 cents a day |
After 6 days |
50 cents a day |
Jack rented 5 books and was charged $26.50. How many days did he rent the books for?
$1 = 100¢
$26.50 = 26.50 x 100 = 2650¢
Amount that Jack paid for each book
= 2650 ÷ 5
= 530¢
Amount that Jack paid for each book for renting for the first 6 days
= 6 x 30
= 180¢
Additional amount that Jack paid for each book for renting for additional days
= 530 - 180
= 350¢
Number of additional days that Jack rented for each book
= 350 ÷ 50
= 7
Total number of days that Jack rented the books
= 6 + 7
= 13
Answer(s): 13