The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$4.00 |
After the fourth hour |
$1.20 per 12 hour or part thereof |
Xuan paid $8.80 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 4 hours = $4.00
Amount that Xuan paid after the fourth hour
= 8.80 - 4.00
= $4.80
Number of sets of $1.20
= 4.80 ÷ 1.20
= 4
Duration of the additional time
= 4 x
12 = 2 h
Greatest number of hours that Xuan parked her car at the carpark
= 4 + 2
= 6 h
Answer(s): 6 h