20. Consider a serial production process with 3 stations: the products are first processed at Station A, then at Station B, and finally at Station C. Station A can complete the work of one unit in 12 minutes. Work at Station B takes 14 minutes per unit, and work at Station C takes 15 minutes per unit. What is the minimum flow time of a unit in this production system if there are no delays?

1. 15 minutes

2. 41 minutes

3. The answer cannot be determined using the available information

4. 12 minutes

5. 14 minutes

21. Consider a serial production process with 3 stations: the products are first processed at Station A, then at Station B, and finally at Station C. Station A can complete the work of one unit in 9 minutes. Work at Station B takes 11 minutes per unit, and work at Station C takes 5 minutes per unit. Which of the following statements is true for this process?

1. Currently, Station C is the bottleneck of this process.

2. Process capacity does not double when the capacity of the bottleneck station doubles

3. Process capacity doubles when the capacity of the bottleneck station doubles.

4. Currently, Station A is the bottleneck of this process.

5. The process cycle time is 5 minutes.