The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$5.00 |
After the second hour |
$2.30 per 12 hour or part thereof |
Erika paid $37.20 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Erika paid for the first 2 hours = $5.00
Amount that Erika paid after the second hour
= 37.20 - 5.00
= $32.20
Number of sets of $2.30
= 32.20 ÷ 2.30
= 14
Duration of the additional time
= 14 x
12 = 7 h
Greatest number of hours that Erika parked her car at the carpark
= 2 + 7
= 9 h
Answer(s): 9 h