1. The ICARE Company has three plants located throughout a state with production capacity 50,75 and 25 gallons. Each day the firm must furnish its four retail shops R1, R2, R3, & R4 with at least 20,20,50, and 60 gallons respectively. The transportation costs (in Rs.) are given below. Retail Company R1 R2 R3 R4 Supply 5 P1 6 7 50 Factories P2 2 5 8 2 75 3 P3 6 9 2 25 Demands 20 20 50 60 The economic problem is to distribute the available product to different retail shops in such a way so that the total transportation cost is minimum? Use North-West Corner Method