The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$5.00 |
After the third hour |
$2.10 per 12 hour or part thereof |
Zara paid $15.50 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Zara paid for the first 3 hours = $5.00
Amount that Zara paid after the third hour
= 15.50 - 5.00
= $10.50
Number of sets of $2.10
= 10.50 ÷ 2.10
= 5
Duration of the additional time
= 5 x
12 = 2.5 h
Greatest number of hours that Zara parked her car at the carpark
= 3 + 2.5
= 5.5 h
Answer(s): 5.5 h