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. |
$12 |
- Seth parked his car at the carpark at 1.00 p.m. for 1 hour and 7 minutes. How much did he have to pay?
- Sarah parked her car at the car park from 7:50 p.m. on Monday to 11 a.m. on Tuesday. Find the amount of parking fee that she had to pay.
(a)
Amount that Seth had to pay for 1 hour and 7 minutes
= 2.50 + 1.70
= $4.20
(b)
1 h = 60 min
From 7:50 p.m. to 8:50 p.m.:
1 h
Amount that Sarah had to pay from 7:50 p.m. to 8:50 p.m = $2.50
From 8:50 p.m. to 10:00 p.m.: 1 h 10 min
1 h 10 min = 1 x 60 + 10 = 70 min
Number of sets of additional 30 minutes in 1 h 10 min
= 70 ÷ 30
= 2 r 10
Number of sets of additional 30 minutes that Sarah had to pay for
= 2 + 1
= 3
Amount that Sarah had to pay for all the additional 30 minutes or part thereof for 1 h 10 min
= 3 x 1.70
= $5.10
From 10:00 p.m. to 6.30. a.m.
Amount that Sarah had to pay from 10:00 to 6.30 a.m. = $12
From 6.30 a.m. to 11 a.m.: 4 h 30 min
4 h 30 min = 4 x 60 + 30 = 270 min
Number of sets of additional 30 minutes in 4 h 30 min
= 270 ÷ 30
= 9
Amount that Sarah had to pay for all the additional 30 minutes or part thereof for 4 h 30 min
= 9 x 1.70
= $15.30
Total amount that Sarah had to pay
= 2.50 + 5.10 + 12 + 15.30
= $34.90
Answer(s): (a) $4.20; (b) $34.90