"zen inc. manufactures two types of products, the g1 and the t1 model airplane. the manufacturing process consists of two principal departments: production and assembly. the production department has 58 skilled workers, each of whom works 7 hours per day. the assembly department has 25 workers, who also work 7-hour shifts. on an average, to produce a g1 model, zen inc. requires 3.5 labor hours for production and 2 labor hours for assembly. the t1 model requires 4 labor hours for production and 1.5 labor hours in assembly. the company anticipates selling at least 1.5 times as many t1 models as g1 models. the company operates five days per week and makes a net profit of $130 on the g1 model, and $150 on the t1 model. zen inc. wants to determine how many of each model should be produced on a weekly basis to maximize net profit."