The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$6.00 |
After the second hour |
$2.20 per 12 hour or part thereof |
Gwen paid $25.80 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Gwen paid for the first 2 hours = $6.00
Amount that Gwen paid after the second hour
= 25.80 - 6.00
= $19.80
Number of sets of $2.20
= 19.80 ÷ 2.20
= 9
Duration of the additional time
= 9 x
12 = 4.5 h
Greatest number of hours that Gwen parked her car at the carpark
= 2 + 4.5
= 6.5 h
Answer(s): 6.5 h