Lincolnshire Lumber sells boards for many uses including wood floors. For floors, the boards are sold to local installers or do-it-yourself homeowners. The boards go through up to four processes, although only the first two are completed for all sales.

Lincolnshire employs 10 workers in the Flooring Department who are each trained and experienced in all four processes. Each employee works 35 hours per week for 50 weeks per year. Lincolnshire allocates 10 percent of the workers’ time to training and staff meetings, The total annual cost for Flooring, excluding the cost of the wood itself but including the tools, machinery, labor, and so on, is $737,100.

The supervisor of the Flooring Department estimates the following time for each of the four processes for a unit of wood as sold:

1. Cutting: 11 minutes

2. Planing: 18 minutes

3. Distressing (optional): 24 minutes

4. Staining (optional): 27 minutes

During the year, Flooring received orders for 12,000 units. Of these, 7,000 units were distressed and 9,500 units were stained.

Required:

a. What is the cost per minute for activities in Flooring?

b. What is the cost of a unit that is cut, planed, and stained?

c. How many minutes of unused capacity did Flooring have for the year?

d. What was the cost of the unused capacity in Flooring?