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 2 days |
20 cents a day |
After 2 days |
50 cents a day |
Archie rented 5 books and was charged $14.50. How many days did he rent the books for?
$1 = 100¢
$14.50 = 14.50 x 100 = 1450¢
Amount that Archie paid for each book
= 1450 ÷ 5
= 290¢
Amount that Archie paid for each book for renting for the first 2 days
= 2 x 20
= 40¢
Additional amount that Archie paid for each book for renting for additional days
= 290 - 40
= 250¢
Number of additional days that Archie rented for each book
= 250 ÷ 50
= 5
Total number of days that Archie rented the books
= 2 + 5
= 7
Answer(s): 7