The table shows how much a shop charges a customer for renting a pair of rollerblades.
Time |
Charges |
First hour |
$9.50 |
Every additional 12 hour |
$3.50 |
Emma paid $23.50 for renting a pair of rollerblades starting from 12 00. What would be the latest time she must return the pair of rollerblades to the shop?
Amount that Emma paid for all the additional
12 hours
= 23.50 - 9.50
= $14
Number of sets of additional
12 hours
= 14 ÷ 3.50
= 4
Total additional time that Emma paid for
= 4 x
12= 2 h
Total time that Emma paid for
= 1 + 2
= 3 h
3 h after 12 00 = 15 00
Latest time that Emma must return the pair of rollerblades to the shop: 15 00
Answer(s): 15 00