Problem 2. An assembly line is to be designed to operate 7.5 hours per day and supply a steady demand of 300 units per day. Here are the tasks and their perfromance times: Preceding Tasks Task Performance Time(Seconds) 70 A B 40 45 D A 10 E B 30 F 20 G D 60 H E 50 1 F 15 J G 25 20 H, J,K L 25 a. Draw the precedence diagram. a g j 70 10 60 25 b h 40 30 50 25 20 f 45 20 15 d. Assign tasks to workstations using the longest opeationg time. Work station Task Task time Idle time a 70 I d 10 10 60 II j 25 5 45 III b 40 5 30 IV h 50 10 f 20 I 15 V k 20 1 25 10 410 e. What is the efficiency of your line balance? Sum of task times (T) = seconds Actual number of workstations (Na) = workstations Workstation cycle time (C) = seconds Efficiecny = f. Suppose demand increases by 10 percent. How would you react to this? Assume that you can operate only 7.5 hours per day. Answer =>