The table shows how much a shop charges a customer for renting a pair of rollerblades.
Time |
Charges |
First hour |
$11.50 |
Every additional 12 hour |
$5.50 |
Julie paid $55.50 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 Julie paid for all the additional
12 hours
= 55.50 - 11.50
= $44
Number of sets of additional
12 hours
= 44 ÷ 5.50
= 8
Total additional time that Julie paid for
= 8 x
12= 4 h
Total time that Julie paid for
= 1 + 4
= 5 h
5 h after 15 00 = 20 00
Latest time that Julie must return the pair of rollerblades to the shop: 20 00
Answer(s): 20 00