The table shows the parking rates at a carpark.
Duration |
Charges |
First 2 hours |
$5.00 |
After the second hour |
$2.90 per 12 hour or part thereof |
Shiyun paid $42.70 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 = $5.00
Amount that Shiyun paid after the second hour
= 42.70 - 5.00
= $37.70
Number of sets of $2.90
= 37.70 ÷ 2.90
= 13
Duration of the additional time
= 13 x
12 = 6.5 h
Greatest number of hours that Shiyun parked her car at the carpark
= 2 + 6.5
= 8.5 h
Answer(s): 8.5 h