The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$5.00 |
After the fourth hour |
$1.40 per 12 hour or part thereof |
Zoe paid $17.60 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Zoe paid for the first 4 hours = $5.00
Amount that Zoe paid after the fourth hour
= 17.60 - 5.00
= $12.60
Number of sets of $1.40
= 12.60 ÷ 1.40
= 9
Duration of the additional time
= 9 x
12 = 4.5 h
Greatest number of hours that Zoe parked her car at the carpark
= 4 + 4.5
= 8.5 h
Answer(s): 8.5 h