The table shows the parking fees at a car park.
| Time |
Charges |
| First 1 hour or less |
$2.10 |
| Every additional 30 minutes or part thereof |
$1.70 |
| Overnight parking from 10 p.m. to 6:30 a.m. |
$9 |
- Wesley parked his car at the carpark at 3.00 p.m. for 1 hour and 38 minutes. How much did he have to pay?
- Opal parked her car at the car park from 5:40 p.m. on Monday to 9 a.m. on Tuesday. Find the amount of parking fee that she had to pay.
(a)
Amount that Wesley had to pay for 1 hour and 38 minutes
= 2.10 + 1.70 + 1.70
= $5.50
(b)
1 h = 60 min
From 5:40 p.m. to 6:40 p.m.:
1 h
Amount that Opal had to pay from 5:40 p.m. to 6:40 p.m = $2.10
From 6:40 p.m. to 10:00 p.m.: 3 h 20 min
3 h 20 min = 3 x 60 + 20 = 200 min
Number of sets of additional 30 minutes in 3 h 20 min
= 200 ÷ 30
= 6 r 20
Number of sets of additional 30 minutes that Opal had to pay for
= 6 + 1
= 7
Amount that Opal had to pay for all the additional 30 minutes or part thereof for 3 h 20 min
= 7 x 1.70
= $11.90
From 10:00 p.m. to 6.30. a.m.
Amount that Opal had to pay from 10:00 to 6.30 a.m. = $9
From 6.30 a.m. to 9 a.m.: 2 h 30 min
2 h 30 min = 2 x 60 + 30 = 150 min
Number of sets of additional 30 minutes in 2 h 30 min
= 150 ÷ 30
= 5
Amount that Opal had to pay for all the additional 30 minutes or part thereof for 2 h 30 min
= 5 x 1.70
= $8.50
Total amount that Opal had to pay
= 2.10 + 11.90 + 9 + 8.50
= $31.50
Answer(s): (a) $5.50; (b) $31.50
