PSLE The table shows the charges for computer rental. Ken rented a computer from 11.12 a.m. to 5.31 p.m.. How much did he pay?
Computer rental |
Charges |
First hour |
$5 |
Additional 12 hour or part thereof |
$1.70 |
From 11.12 a.m. to 12.12 p.m. = 1 h
From 12.12 p.m. to 5.31 p.m. = 5 h 19 min = 319 min
Sets of additional
12 hour
= 319 ÷ 30
= 10 r 19
Total number of sets of additional
12 hour and part thereof to pay for
= 10 + 1
= 11
Amount to pay from 11.12 a.m. to 12.12 a.m. = $5
Amount to pay from 12.12 a.m. to 5.31 p.m. = 11 x 1.70 = $18.70
Total amount that Ken paid
= 5 + 18.70
= $23.70
Answer(s): $23.70