The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$8.00 |
After the second hour |
$3.20 per 12 hour or part thereof |
Lucy paid $49.60 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 2 hours = $8.00
Amount that Lucy paid after the second hour
= 49.60 - 8.00
= $41.60
Number of sets of $3.20
= 41.60 ÷ 3.20
= 13
Duration of the additional time
= 13 x
12 = 6.5 h
Greatest number of hours that Lucy parked her car at the carpark
= 2 + 6.5
= 8.5 h
Answer(s): 8.5 h