The table shows the parking fees at a car park.
Time |
Charges |
First 1 hour or less |
$1.80 |
Every additional 30 minutes or part thereof |
$1.10 |
Overnight parking from 10 p.m. to 6:30 a.m. |
$10 |
- David parked his car at the carpark at 6.00 p.m. for 1 hour and 17 minutes. How much did he have to pay?
- Xylia parked her car at the car park from 1:50 p.m. on Monday to 8 a.m. on Tuesday. Find the amount of parking fee that she had to pay.
(a)
Amount that David had to pay for 1 hour and 17 minutes
= 1.80 + 1.10
= $2.90
(b)
1 h = 60 min
From 1:50 p.m. to 2:50 p.m.:
1 h
Amount that Xylia had to pay from 1:50 p.m. to 2:50 p.m = $1.80
From 2:50 p.m. to 10:00 p.m.: 7 h 10 min
7 h 10 min = 7 x 60 + 10 = 430 min
Number of sets of additional 30 minutes in 7 h 10 min
= 430 ÷ 30
= 14 r 10
Number of sets of additional 30 minutes that Xylia had to pay for
= 14 + 1
= 15
Amount that Xylia had to pay for all the additional 30 minutes or part thereof for 7 h 10 min
= 15 x 1.10
= $16.50
From 10:00 p.m. to 6.30. a.m.
Amount that Xylia had to pay from 10:00 to 6.30 a.m. = $10
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 Xylia had to pay for all the additional 30 minutes or part thereof for 1 h 30 min
= 3 x 1.10
= $3.30
Total amount that Xylia had to pay
= 1.80 + 16.50 + 10 + 3.30
= $31.60
Answer(s): (a) $2.90; (b) $31.60