The table shows the parking rates at a carpark.
Duration |
Charges |
First 3 hours |
$8.00 |
After the third hour |
$1.90 per 12 hour or part thereof |
Jen paid $30.80 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Jen paid for the first 3 hours = $8.00
Amount that Jen paid after the third hour
= 30.80 - 8.00
= $22.80
Number of sets of $1.90
= 22.80 ÷ 1.90
= 12
Duration of the additional time
= 12 x
12 = 6 h
Greatest number of hours that Jen parked her car at the carpark
= 3 + 6
= 9 h
Answer(s): 9 h