A soft drink firm sends its products, which it bottled and packs in its three factories, to its warehouses in four different locations. In the next production period; 50,000, 20,000 and 40,000 bottles of soft drinks will be produced in the 1st, 2nd and 3rd factories, respectively. The demands of four warehouses are; 25,000, 30,000,35,000 and 30,000 respectively. Transport costs between factories and warehouses are as given in the adjacent table. The company's minimum cost transportation plan; a) Vogel Method initial solution, (15p.) b) Find the optimal solution with the Multiplier Method. (20p.] stores 2 3 4 20 18 14 11 10 12 16 10 Factories 21 25 22 6, 3.