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The assembly-line activities are given as follows for the manufacturing of a product: Activity Predecessors Activity Predecessors Performance Time (mins) 6 3 4 3 A B C D Performance Time (mins) 5 1 5 2 E F G H A B B D, E, F G For a given 7-minute cycle time after allowances, the theoretical minimum number of workstations = (round your response to the immediate higher whole number). Using the 7-minute cycle time and 5 workstations, the theoretical efficiency of the assembly line = 1% (enter your response as a percentage rounded to two decimal places). The correct precedence relationship with one of the possible assignment of tasks to workstations for the 7-minute cycle time is shown in Fig. 1 Fig. 2 Fig. 3 E E B F H H . H The actual efficiency of the assembly line using 5 workstations =% (enter your response as a percentage rounded to two decimal places)