The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$5.00 |
After the fourth hour |
$1.20 per 12 hour or part thereof |
Erika paid $19.40 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Erika paid for the first 4 hours = $5.00
Amount that Erika paid after the fourth hour
= 19.40 - 5.00
= $14.40
Number of sets of $1.20
= 14.40 ÷ 1.20
= 12
Duration of the additional time
= 12 x
12 = 6 h
Greatest number of hours that Erika parked her car at the carpark
= 4 + 6
= 10 h
Answer(s): 10 h