The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$3.00 |
After the third hour |
$3.40 per 12 hour or part thereof |
Zara paid $40.40 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 = $3.00
Amount that Zara paid after the third hour
= 40.40 - 3.00
= $37.40
Number of sets of $3.40
= 37.40 ÷ 3.40
= 11
Duration of the additional time
= 11 x
12 = 5.5 h
Greatest number of hours that Zara parked her car at the carpark
= 3 + 5.5
= 8.5 h
Answer(s): 8.5 h