PSLE The table shows the charges for laser gun rental. Bobby rented a laser gun from 11.39 a.m. to 3.40 p.m.. How much did he pay?
Laser Gun rental |
Charges |
First hour |
$2 |
Additional 12 hour or part thereof |
$1.70 |
From 11.39 a.m. to 12.39 p.m. = 1 h
From 12.39 p.m. to 3.40 p.m. = 3 h 1 min = 181 min
Sets of additional
12 hour
= 181 ÷ 30
= 6 r 1
Total number of sets of additional
12 hour and part thereof to pay for
= 6 + 1
= 7
Amount to pay from 11.39 a.m. to 12.39 a.m. = $2
Amount to pay from 12.39 a.m. to 3.40 p.m. = 7 x 1.70 = $11.90
Total amount that Bobby paid
= 2 + 11.90
= $13.90
Answer(s): $13.90