The table shows how much a shop charges a customer for renting a pair of rollerblades.
Time |
Charges |
First hour |
$8.50 |
Every additional 12 hour |
$3.50 |
Kathy paid $36.50 for renting a pair of rollerblades starting from 13 00. What would be the latest time she must return the pair of rollerblades to the shop?
Amount that Kathy paid for all the additional
12 hours
= 36.50 - 8.50
= $28
Number of sets of additional
12 hours
= 28 ÷ 3.50
= 8
Total additional time that Kathy paid for
= 8 x
12= 4 h
Total time that Kathy paid for
= 1 + 4
= 5 h
5 h after 13 00 = 18 00
Latest time that Kathy must return the pair of rollerblades to the shop: 18 00
Answer(s): 18 00