The table shows the parking fees at a car park.
Time |
Charges |
First 1 hour or less |
$2.50 |
Every additional 30 minutes or part thereof |
$1.70 |
Overnight parking from 10 p.m. to 6:30 a.m. |
$5 |
- Reggie parked his car at the carpark at 1.00 p.m. for 1 hour and 28 minutes. How much did he have to pay?
- Mary parked her car at the car park from 6:35 p.m. on Monday to 8 a.m. on Tuesday. Find the amount of parking fee that she had to pay.
(a)
Amount that Reggie had to pay for 1 hour and 28 minutes
= 2.50 + 1.70
= $4.20
(b)
1 h = 60 min
From 6:35 p.m. to 7:35 p.m.:
1 h
Amount that Mary had to pay from 6:35 p.m. to 7:35 p.m = $2.50
From 7:35 p.m. to 10:00 p.m.: 2 h 25 min
2 h 25 min = 2 x 60 + 25 = 145 min
Number of sets of additional 30 minutes in 2 h 25 min
= 145 ÷ 30
= 4 r 25
Number of sets of additional 30 minutes that Mary had to pay for
= 4 + 1
= 5
Amount that Mary had to pay for all the additional 30 minutes or part thereof for 2 h 25 min
= 5 x 1.70
= $8.50
From 10:00 p.m. to 6.30. a.m.
Amount that Mary had to pay from 10:00 to 6.30 a.m. = $5
From 6.30 a.m. to 8 a.m.: 1 h 30 min
1 h 30 min = 1 x 60 + 30 = 90 min
Number of sets of additional 30 minutes in 1 h 30 min
= 90 ÷ 30
= 3
Amount that Mary had to pay for all the additional 30 minutes or part thereof for 1 h 30 min
= 3 x 1.70
= $5.10
Total amount that Mary had to pay
= 2.50 + 8.50 + 5 + 5.10
= $21.10
Answer(s): (a) $4.20; (b) $21.10