The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$4.00 |
After the second hour |
$1.40 per 12 hour or part thereof |
Anna paid $20.80 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Anna paid for the first 2 hours = $4.00
Amount that Anna paid after the second hour
= 20.80 - 4.00
= $16.80
Number of sets of $1.40
= 16.80 ÷ 1.40
= 12
Duration of the additional time
= 12 x
12 = 6 h
Greatest number of hours that Anna parked her car at the carpark
= 2 + 6
= 8 h
Answer(s): 8 h