The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$5.00 |
After the third hour |
$1.60 per 12 hour or part thereof |
Tiffany paid $22.60 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Tiffany paid for the first 3 hours = $5.00
Amount that Tiffany paid after the third hour
= 22.60 - 5.00
= $17.60
Number of sets of $1.60
= 17.60 ÷ 1.60
= 11
Duration of the additional time
= 11 x
12 = 5.5 h
Greatest number of hours that Tiffany parked her car at the carpark
= 3 + 5.5
= 8.5 h
Answer(s): 8.5 h