Example 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 Supply R1 R2 R3 R4 P1 3 5 7 6 50 P2 2 5 8 2 75 P3 3 6 9 2 25 Demand 20 20 50 60 Use NWCM and LCM TO SOLVE THIS PROBLEM