How did the Units to be Produced on the Statement of Optimum Mix get calculated? (I get the machine hours per unit and the machine hours consumed). What is the optimal product mix(how many A, B, and C should be produced) the company would produce for a week based on only having 300 labor hours and the demand for each product?

Product Units to be Produced Product A 15 Product B 11 Product C 30 Working Statement of ranking indicating which product to produced first second and third Product Product A Product B Product C Sales price per unit $ 140.00 $ 75.00 $ 240.00 Variable cost per unit $ 100.00 $ 50.00 $ 180.00 Contribution margin per unit $ 40.00 S 25.00 $ 60.00 Labor hours per unit 5.00 4.00 6.00 Contribution margin per Labor hours 8.00 $ 6.25 $ 10.00 Ranking Second Third First Produce Second Third First Statement of Optimum mix Product Units to be produced Machine hours per unit Machine hours consumed Product A 15 5.00 75.00 Product B 11 4.00 45.00 Product C 30 6.00 180.00 Maximum Quantity 300.00 Product Units to be Produced Product A 15 Product B 11 Product C 30 Working Statement of ranking indicating which product to produced first second and third Product Product A Product B Product C Sales price per unit $ 140.00 $ 75.00 $ 240.00 Variable cost per unit $ 100.00 $ 50.00 $ 180.00 Contribution margin per unit $ 40.00 S 25.00 $ 60.00 Labor hours per unit 5.00 4.00 6.00 Contribution margin per Labor hours 8.00 $ 6.25 $ 10.00 Ranking Second Third First Produce Second Third First Statement of Optimum mix Product Units to be produced Machine hours per unit Machine hours consumed Product A 15 5.00 75.00 Product B 11 4.00 45.00 Product C 30 6.00 180.00 Maximum Quantity 300.00