PSLE The table shows the charges for computer rental. Harry rented a computer from 11.39 a.m. to 2.43 p.m.. How much did he pay?
Computer rental |
Charges |
First hour |
$3 |
Additional 12 hour or part thereof |
$1.90 |
From 11.39 a.m. to 12.39 p.m. = 1 h
From 12.39 p.m. to 2.43 p.m. = 2 h 4 min = 124 min
Sets of additional
12 hour
= 124 ÷ 30
= 4 r 4
Total number of sets of additional
12 hour and part thereof to pay for
= 4 + 1
= 5
Amount to pay from 11.39 a.m. to 12.39 a.m. = $3
Amount to pay from 12.39 a.m. to 2.43 p.m. = 5 x 1.90 = $9.50
Total amount that Harry paid
= 3 + 9.50
= $12.50
Answer(s): $12.50