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3 CD is a water pipeline. A and B are two towns. A pumping station is to be located on the pipeline to pump water to A and B. Each town is to pay for their own service pipes and insist on equality of costs. a Where should C be located for equality of costs to occur? b What is the total length of service pipe re- quired? c If the towns agree to pay equal amounts, would it be cheaper to install the service pipeline from D to B to A?
using the graph from this website http://www.haesemathematics.com.au/samples/sa11gt-5_02.pdf
page 83: number 3
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