The table shows the parking rates at a carpark.
Duration |
Charges |
First 4 hours |
$5.00 |
After the fourth hour |
$3.40 per 12 hour or part thereof |
Raeann paid $42.40 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Raeann paid for the first 4 hours = $5.00
Amount that Raeann paid after the fourth hour
= 42.40 - 5.00
= $37.40
Number of sets of $3.40
= 37.40 ÷ 3.40
= 11
Duration of the additional time
= 11 x
12 = 5.5 h
Greatest number of hours that Raeann parked her car at the carpark
= 4 + 5.5
= 9.5 h
Answer(s): 9.5 h