The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$7.00 |
After the second hour |
$1.20 per 12 hour or part thereof |
Xuan paid $23.80 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 2 hours = $7.00
Amount that Xuan paid after the second hour
= 23.80 - 7.00
= $16.80
Number of sets of $1.20
= 16.80 ÷ 1.20
= 14
Duration of the additional time
= 14 x
12 = 7 h
Greatest number of hours that Xuan parked her car at the carpark
= 2 + 7
= 9 h
Answer(s): 9 h