The following question is taken from the December 2012 exam paper.
A truck delivered sand to two customers in a week. The following details are available.
Customer Weight of goods delivered (kilograms) 500 (kilograms)
X 500 200
Y 180 1,200
680 1,400
The truck cost $3,060 to operate in the week. Each customer delivery was carried out separately, and the truck made no other deliveries in the week.What is the cost per kilogram/kilometre of sand delivered in the week (to the nearest $0.001)?