The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$4.00 |
After the second hour |
$1.70 per 12 hour or part thereof |
Zara paid $12.50 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 2 hours = $4.00
Amount that Zara paid after the second hour
= 12.50 - 4.00
= $8.50
Number of sets of $1.70
= 8.50 ÷ 1.70
= 5
Duration of the additional time
= 5 x
12 = 2.5 h
Greatest number of hours that Zara parked her car at the carpark
= 2 + 2.5
= 4.5 h
Answer(s): 4.5 h