Q- A Tamiya 4WD mini car is assembled in mass production to meet customer demand 2400 units per week. The assembly line is running 12 hours per day and 5 days per week. Details assembly data are summarized in Table 1. Table 1: Assembly line data Task Performance tie (Second) Immediate Predecessors A 40 None 80 A 30 A D 25 B E 20 C F 15 B B G 60 B H 45 D 1 10 E,G 75 F K 15 H,1,J | | | (a) Draw a precedence diagram of this assembly operation (3 marks) (b) Determine the cycle time, theoretical minimum number of work stations (5 marks) (c) Balance the line (assignation of work elements) and calculate the line efficiency & adah