The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$10.00 |
After the third hour |
$1.80 per 12 hour or part thereof |
Xuan paid $13.60 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Xuan paid for the first 3 hours = $10.00
Amount that Xuan paid after the third hour
= 13.60 - 10.00
= $3.60
Number of sets of $1.80
= 3.60 ÷ 1.80
= 2
Duration of the additional time
= 2 x
12 = 1 h
Greatest number of hours that Xuan parked her car at the carpark
= 3 + 1
= 4 h
Answer(s): 4 h