The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$4.00 |
After the fourth hour |
$1.50 per 12 hour or part thereof |
Lucy paid $26.50 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Lucy paid for the first 4 hours = $4.00
Amount that Lucy paid after the fourth hour
= 26.50 - 4.00
= $22.50
Number of sets of $1.50
= 22.50 ÷ 1.50
= 15
Duration of the additional time
= 15 x
12 = 7.5 h
Greatest number of hours that Lucy parked her car at the carpark
= 4 + 7.5
= 11.5 h
Answer(s): 11.5 h