The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$8.00 |
After the third hour |
$3.20 per 12 hour or part thereof |
Yen paid $59.20 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Yen paid for the first 3 hours = $8.00
Amount that Yen paid after the third hour
= 59.20 - 8.00
= $51.20
Number of sets of $3.20
= 51.20 ÷ 3.20
= 16
Duration of the additional time
= 16 x
12 = 8 h
Greatest number of hours that Yen parked her car at the carpark
= 3 + 8
= 11 h
Answer(s): 11 h