Cushn $7$ Bosch has established a distribution network for the supply of washing machines from its three plents to three warehouses. The current network has the following charecterstics $\backslash$begin$\{$tabular$\}\{|$l$|$c$|$c$|$c$|$c$|\}\backslash$hline Costs & warehouse $1$ & warchouse $2$ & warchoure $3$ & Supply $\backslash \backslash \backslash$hline Ambala & $8$ & $6$ & $9$ & $300\backslash \backslash \backslash$hline vellore & $10$ & $9$ & $12$ & $500\backslash \backslash \backslash$hline Goa & $7$ & $4$ & $3$ & $400\backslash \backslash \backslash$hline Demand & $350$ & $450$ & $400$ & $\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}$ The unit costs supply and demand are given in the table. Apply NWC method to cdentify the initial feasible solution ard further idertaty optimal Solution.