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Q4 A company has five plants P. P. P. P. and Ps from which it supplies to four markets M, M2, M3, and M. The following table gives the cost of shifting from plant to market, quantities available at each plant and quantities required at each market: Plant PL P2 Ps P4 Ps Required M 10 2 3 15 9 35 M 5 10 Market 15 2 40 M: 15 5 14 7 15 20 M 20 15 13 25 30 Available 20 20 40 10 35 4 8 Find an initial basic feasible solution of the above transportation problem by using Northwest- Corner method. Obtain the optimum solution using U-V/Iterative method