just answer question one, the picture is so clear

1. A manufacturer wants to produce 1800 units of a product per week. The work elements for the product are given in the following table. Set up an assembly line to meet the production requirement. Primary rule: Assign elements to work stations in the order of the largest number of following elements. Secondary rule (tie-breaking): Assign elements to work stations in the order of the least operating time. Assume that a week has 5 working days and a day has 8 working hours. Work element Time (seconds) Immediate predecessors A 35 B 80 A A D E 15 F 20 B G B H D I 15 E, G J F K 50 HIJ 30 30 45 50 75 a. What is the desired cycle time? b. What is the theoretical minimum number of workstations? c. Draw a precedence diagram. d. Assign work elements to each workstation using the rules. e. What is the efficiency