A laundromat hired a delivery service to move its machines to a new location. The mass of all its inventory 21690 kg. The load and rental cost of a lorry from the delivery service are seen in the table.
Delivery service package |
|
Load to be carried per lorry |
Mass not over 5000 kg |
Rental cost of 1 lorry with driver |
$40 per hour or part thereof |
The laundromat hired the delivery service from 4 p.m. to 5.30 p.m. Find the total amount that was paid for the delivery service.
Number of sets of 5000 kg
= 21690 ÷ 5000
= 4.338
Number of lorries needed to transport 21690 kg of inventory
= 4 + 1
= 5
From 4 p.m. to 5.30 p.m.: 1 h 30 min
Duration that each lorry would be rented for
= 1 + 1
= 2 h
Rental cost of 1 lorry with driver for 2 h
= 2 x 40
= $80
Rental cost of 5 lorries with drivers for 2 h
= 5 x 80
= $400
Answer(s): $400