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 |
40 cents a day |
After 2 days |
60 cents a day |
Sam rented 2 books and was charged $8.80. How many days did he rent the books for?
$1 = 100¢
$8.80 = 8.80 x 100 = 880¢
Amount that Sam paid for each book
= 880 ÷ 2
= 440¢
Amount that Sam paid for each book for renting for the first 2 days
= 2 x 40
= 80¢
Additional amount that Sam paid for each book for renting for additional days
= 440 - 80
= 360¢
Number of additional days that Sam rented for each book
= 360 ÷ 60
= 6
Total number of days that Sam rented the books
= 2 + 6
= 8
Answer(s): 8