The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$3.00 |
After the second hour |
$3.30 per 12 hour or part thereof |
Zoe paid $52.50 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 2 hours = $3.00
Amount that Zoe paid after the second hour
= 52.50 - 3.00
= $49.50
Number of sets of $3.30
= 49.50 ÷ 3.30
= 15
Duration of the additional time
= 15 x
12 = 7.5 h
Greatest number of hours that Zoe parked her car at the carpark
= 2 + 7.5
= 9.5 h
Answer(s): 9.5 h