The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$7.00 |
After the fourth hour |
$3.10 per 12 hour or part thereof |
Fiona paid $47.30 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Fiona paid for the first 4 hours = $7.00
Amount that Fiona paid after the fourth hour
= 47.30 - 7.00
= $40.30
Number of sets of $3.10
= 40.30 ÷ 3.10
= 13
Duration of the additional time
= 13 x
12 = 6.5 h
Greatest number of hours that Fiona parked her car at the carpark
= 4 + 6.5
= 10.5 h
Answer(s): 10.5 h