The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$9.00 |
After the fourth hour |
$1.30 per 12 hour or part thereof |
Marion paid $15.50 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Marion paid for the first 4 hours = $9.00
Amount that Marion paid after the fourth hour
= 15.50 - 9.00
= $6.50
Number of sets of $1.30
= 6.50 ÷ 1.30
= 5
Duration of the additional time
= 5 x
12 = 2.5 h
Greatest number of hours that Marion parked her car at the carpark
= 4 + 2.5
= 6.5 h
Answer(s): 6.5 h