$103$ Field Workshop, a technical service providing mechanical services to all SANDF bases in the Wester Cape, has a division that makes the brown paint for the army fleet, and a white paint for the navy and air force fleet.EXAMInformation about the paints is given in the table below.Selling price per litreBrownR$200$Variable cost per litre:Material $($R$2\mathrm{.}50$; $8$ litres & $10$ litres respectively$)$Labour $($R$4\mathrm{.}00$; $10$ hours & $5$ hours respectively$)$Variable overhead $($R$7\mathrm{.}00$; $4$ hours and $5$ hours respectively$)$Minimum demand $($litres$)$R$20$R$40$R$28350$Limitations of resources are as follows:Material$31000$ kgLabour$20000$ hoursVariable overhead$17500$ machine hoursThe maximum demand is $1000$ litres of the Brown and $3000$ litres of White.Required:WhiteR$210$R$25$R$20$R$353506\mathrm{.}1$Prepare a linear programming solution for the limited resources of $103$ Field Workshop using the graphical method with simultaneous equations to support your answer.