The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$8.00 |
After the fourth hour |
$3.40 per 12 hour or part thereof |
Pamela paid $28.40 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Pamela paid for the first 4 hours = $8.00
Amount that Pamela paid after the fourth hour
= 28.40 - 8.00
= $20.40
Number of sets of $3.40
= 20.40 ÷ 3.40
= 6
Duration of the additional time
= 6 x
12 = 3 h
Greatest number of hours that Pamela parked her car at the carpark
= 4 + 3
= 7 h
Answer(s): 7 h