The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$6.00 |
After the second hour |
$3.30 per 12 hour or part thereof |
Tammy paid $35.70 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Tammy paid for the first 2 hours = $6.00
Amount that Tammy paid after the second hour
= 35.70 - 6.00
= $29.70
Number of sets of $3.30
= 29.70 ÷ 3.30
= 9
Duration of the additional time
= 9 x
12 = 4.5 h
Greatest number of hours that Tammy parked her car at the carpark
= 2 + 4.5
= 6.5 h
Answer(s): 6.5 h