The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$4.00 |
After the third hour |
$2.80 per 12 hour or part thereof |
Gwen paid $48.80 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 3 hours = $4.00
Amount that Gwen paid after the third hour
= 48.80 - 4.00
= $44.80
Number of sets of $2.80
= 44.80 ÷ 2.80
= 16
Duration of the additional time
= 16 x
12 = 8 h
Greatest number of hours that Gwen parked her car at the carpark
= 3 + 8
= 11 h
Answer(s): 11 h