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 |
Esther paid $28 for renting a pair of rollerblades starting from 17 00. What would be the latest time she must return the pair of rollerblades to the shop?
Amount that Esther paid for all the additional
12 hours
= 28 - 11.50
= $16.50
Number of sets of additional
12 hours
= 16.50 ÷ 5.50
= 3
Total additional time that Esther paid for
= 3 x
12= 1
12 h
Total time that Esther paid for
= 1 + 1
12= 2
12 h
2
12 h after 17 00 = 19 30
Latest time that Esther must return the pair of rollerblades to the shop: 19 30
Answer(s): 19 30