The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$7.00 |
After the third hour |
$2.40 per 12 hour or part thereof |
Linda paid $38.20 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Linda paid for the first 3 hours = $7.00
Amount that Linda paid after the third hour
= 38.20 - 7.00
= $31.20
Number of sets of $2.40
= 31.20 ÷ 2.40
= 13
Duration of the additional time
= 13 x
12 = 6.5 h
Greatest number of hours that Linda parked her car at the carpark
= 3 + 6.5
= 9.5 h
Answer(s): 9.5 h