What is this four-step process capacity?

If this process is given production load of 2000, that is to say, the Work-in-Process (WIP) is 2000. What is the throughput time of Step A to process these WIPs of 2000 units?

When the Work-in-Process (WIP) is 2000. What is the total throughput time (TTT) of the whole process? (we dont consider any setup time of this process)

When the Work-in-Process (WIP) is 2000. What is the current productivity of this process?

When the Work-in-Process (WIP) is 2000. If we assume that this process is designed to work 24 hours. What is the Utilization of this process?

When the Work-in-Process (WIP) is 2000. Suppose the steps in activity D are made easier, so the activity time per unit in step D is reduced by 50% (to 0.25 min per unit). If all the other settings remain the same, by how much does the productivity of the entire process increase in processing this 2000 WIP?

QUESTION 19 Consider the following four-step process: A 4B 4C 4D The following data are available for the four steps: A B D 0.25 0.33 0.2 0.5 Cycle time per unit (min/unit) Throughput Rate (units/min) 4 3 5 2 The following 7 questions are based on the above problem setting. Please identify which step is the bottleneck