The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$7.00 |
After the third hour |
$2.30 per 12 hour or part thereof |
Tiffany paid $18.50 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 = $7.00
Amount that Tiffany paid after the third hour
= 18.50 - 7.00
= $11.50
Number of sets of $2.30
= 11.50 ÷ 2.30
= 5
Duration of the additional time
= 5 x
12 = 2.5 h
Greatest number of hours that Tiffany parked her car at the carpark
= 3 + 2.5
= 5.5 h
Answer(s): 5.5 h