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 |
Natalie paid $20.90 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Natalie paid for the first 2 hours = $4.00
Amount that Natalie paid after the second hour
= 20.90 - 4.00
= $16.90
Number of sets of $1.30
= 16.90 ÷ 1.30
= 13
Duration of the additional time
= 13 x
12 = 6.5 h
Greatest number of hours that Natalie parked her car at the carpark
= 2 + 6.5
= 8.5 h
Answer(s): 8.5 h