The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$4.00 |
After the second hour |
$1.30 per 12 hour or part thereof |
Mary paid $14.40 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Mary paid for the first 2 hours = $4.00
Amount that Mary paid after the second hour
= 14.40 - 4.00
= $10.40
Number of sets of $1.30
= 10.40 ÷ 1.30
= 8
Duration of the additional time
= 8 x
12 = 4 h
Greatest number of hours that Mary parked her car at the carpark
= 2 + 4
= 6 h
Answer(s): 6 h