The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$5.00 |
After the fourth hour |
$2.40 per 12 hour or part thereof |
Sabrina paid $21.80 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Sabrina paid for the first 4 hours = $5.00
Amount that Sabrina paid after the fourth hour
= 21.80 - 5.00
= $16.80
Number of sets of $2.40
= 16.80 ÷ 2.40
= 7
Duration of the additional time
= 7 x
12 = 3.5 h
Greatest number of hours that Sabrina parked her car at the carpark
= 4 + 3.5
= 7.5 h
Answer(s): 7.5 h