The table shows how much a shop charges a customer for renting a pair of rollerblades.
Time |
Charges |
First hour |
$3.50 |
Every additional 12 hour |
$1.50 |
Ivory paid $14 for renting a pair of rollerblades starting from 15 00. What would be the latest time she must return the pair of rollerblades to the shop?
Amount that Ivory paid for all the additional
12 hours
= 14 - 3.50
= $10.50
Number of sets of additional
12 hours
= 10.50 ÷ 1.50
= 7
Total additional time that Ivory paid for
= 7 x
12= 3
12 h
Total time that Ivory paid for
= 1 + 3
12= 4
12 h
4
12 h after 15 00 = 19 30
Latest time that Ivory must return the pair of rollerblades to the shop: 19 30
Answer(s): 19 30