The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$6.00 |
After the third hour |
$2.50 per 12 hour or part thereof |
Julie paid $23.50 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Julie paid for the first 3 hours = $6.00
Amount that Julie paid after the third hour
= 23.50 - 6.00
= $17.50
Number of sets of $2.50
= 17.50 ÷ 2.50
= 7
Duration of the additional time
= 7 x
12 = 3.5 h
Greatest number of hours that Julie parked her car at the carpark
= 3 + 3.5
= 6.5 h
Answer(s): 6.5 h