QUESTION $8$

The table below presents the information on solid waste generation, cost of transport, and cost of disposal of a system that consists of $2$ disposal sites and $4$ collection points $($pictured in Figure $1).$ Calculate the minimum cost of transportation and disposal.

Elements of a simple solid waste management system.

Figure $1$

$\backslash$table$[[$Collection site,$\backslash$table$[[$Waste generated$],[($tonnes$/$week$)]],\backslash$table$[[$Cost of transport to$],[$disposal site $1($$$/$tonne$)]],\backslash$table$[[$Cost of transport to$],[$disposal site $2($$$/$tonne$)]]],[1,300,4,8],[2,500,12,11],[3,850,8,15],[4,200,7,3]]$

$\backslash$table$[[$Disposal site,Capacity $($tonnes$),$Cost of disposal $($$$/$tonne$)],[1,2,000,5],[2,2,000,7]]$

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