The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$10.00 |
After the second hour |
$1.10 per 12 hour or part thereof |
Hilda paid $17.70 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Hilda paid for the first 2 hours = $10.00
Amount that Hilda paid after the second hour
= 17.70 - 10.00
= $7.70
Number of sets of $1.10
= 7.70 ÷ 1.10
= 7
Duration of the additional time
= 7 x
12 = 3.5 h
Greatest number of hours that Hilda parked her car at the carpark
= 2 + 3.5
= 5.5 h
Answer(s): 5.5 h