Here is a procedure that will help you solve most of the end-of-chapter problems in this book and on exams:

1. Identify the question to be answered. This is critical.

2. Summarize the information given in the problem statement using the appropriate symbols.

3. Determine what type of problem it is so you can select the appropriate problem-solving tools such as a formula or table. Check your notes from class, chapter examples, and the Solved Problems section of the chapter, and any preceding chapter problems you have already solved for guidance.

4. Solve the problem and be sure to indicate your answer.

Department A can produce parts at a rate of 50/day. Department B uses those parts at a rate of 10/day. Example 1 Each day unused parts are added to inventory. At what rate does the inventory of unused parts build up?