Question (3): Solve the following problem: (8 marks) The Feed Ranch fattens cattle for farmers and ship them to markets. The owners of the ranch seek to minimize total feed costs. The cost per pound of stocks X, Y are $5 and $7 respectively. The feed mix can be made up of the three grains that contain the following ingredients per pound of fead: Feed Stock X Ingredient Stock Y B 5 4 0 10 3 4 Minimum requirement per cow 90 48 4 Required: a) Formulate the problem as linear program. No graph is required. (4 marks) b) Determine the optimal point that will minimize cost using the corner point method. Show your work. (4 marks)