The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$4.00 |
After the third hour |
$1.90 per 12 hour or part thereof |
Emma paid $17.30 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Emma paid for the first 3 hours = $4.00
Amount that Emma paid after the third hour
= 17.30 - 4.00
= $13.30
Number of sets of $1.90
= 13.30 ÷ 1.90
= 7
Duration of the additional time
= 7 x
12 = 3.5 h
Greatest number of hours that Emma parked her car at the carpark
= 3 + 3.5
= 6.5 h
Answer(s): 6.5 h