The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$8.00 |
After the second hour |
$1.10 per 12 hour or part thereof |
Shiyun paid $23.40 for her parking charges. What was the greatest number of hours she parked her car at the carpark?
Amount that Shiyun paid for the first 2 hours = $8.00
Amount that Shiyun paid after the second hour
= 23.40 - 8.00
= $15.40
Number of sets of $1.10
= 15.40 ÷ 1.10
= 14
Duration of the additional time
= 14 x
12 = 7 h
Greatest number of hours that Shiyun parked her car at the carpark
= 2 + 7
= 9 h
Answer(s): 9 h