The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$5.00 |
After the third hour |
$1.60 per 12 hour or part thereof |
Diana paid $8.20 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Diana paid for the first 3 hours = $5.00
Amount that Diana paid after the third hour
= 8.20 - 5.00
= $3.20
Number of sets of $1.60
= 3.20 ÷ 1.60
= 2
Duration of the additional time
= 2 x
12 = 1 h
Greatest number of hours that Diana parked her car at the carpark
= 3 + 1
= 4 h
Answer(s): 4 h