Task: Linear programming cost minimization

Case/Problem (Cost Minimization)

Filipinas Eslon Manufacturing Corp. (FEMCO) of Iligan City, blends solvent from two premixed bases, Donimil and Capilal. Each liter of Donimil costs 15 pesos and contains 8 parts kerosene, 10 parts polyvinyl resin, and 12 parts mineral spirits. Capilal costs 30 pesos a liter and contains 6 parts kerosene, 4 parts polyvinyl resin, and 12 parts mineral spirits. Each container of Femco solvent must contain at least 24 parts kerosene, 20 parts polyvinyl resin, and 24 parts mineral spirits. Graphically, find the best combination of Donimil and Capilal to meet the requirements for Femco solvent at the least cost. What is the cost per liter of the final mix?