4. A company that operates 10 hours a day manufactures three products on three sequential processes. The following table summarizes the data of the problem:
Minutes per unit
Product Process 1 Process 2 Process 3 Unit price
1 10 6 8 $4.50
2 5 8 10 $5.00
3 6 9 12 $4.00
(a) Determine the optimal product mix.
(b) Use the dual prices to prioritize the three processes for possible expansion.
(c) If additional production hours can be allocated, what would be a fair cost per additional hour for each process?