Three products A, B, and Care produced using four types of machines R1, R2, R3, and R4. The firm owns 3 machines of type R4 and 1 of each other type. One worker is responsible from each machine---a total of 6 workers. The labor costs are $ 20/hr. Workers are available 10 hrs a day for 5 days a week. R1 - 20 min R1 - 20 min R2 - 10 min R2 - 10 min R4-15 min A, demand = 40/wk price = $90/unit Requirements for A-Raw material: $10/unit, Purchased parts: $20/unit R2-40 min R4 - 30 min R3 - 20 min B, demand = 50/wk price = $100/unit Requirements for B - Raw material: $15/unit, Purchased parts: $15/unit R1 - 30 min R1 -30 min - R3 - 25 min 1 R3-25 min R4 - 20 min R4-20min C, demand = 80/wk price = $90/unit Requirements for C- Raw material: $5/unit, Purchased parts: $10/unit Which one is the bottleneck resource? Oo