The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$4.00 |
After the fourth hour |
$1.30 per 12 hour or part thereof |
Joelle paid $18.30 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Joelle paid for the first 4 hours = $4.00
Amount that Joelle paid after the fourth hour
= 18.30 - 4.00
= $14.30
Number of sets of $1.30
= 14.30 ÷ 1.30
= 11
Duration of the additional time
= 11 x
12 = 5.5 h
Greatest number of hours that Joelle parked her car at the carpark
= 4 + 5.5
= 9.5 h
Answer(s): 9.5 h