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The assembly-line activities are given as follows for the manufacturing of a product Performance Time (mins) 7 Task A B Fig. 1 Predecessors Fig. 2 A B B Task E F G H Performance Time (mins) 7 1 For a given 7-minute cycle time after allowances, the theoretical minimum number of workstations= (round your response to the immediate-higher whole number) The correct precedence relationship with one of the possible assignment of tasks to workstations for the 7-minute cycle time is shown in Fig. 3 Fig. 3 Predecessors C D, E, F G Q The operating efficiency of the assembly line using 5 workstations 91.43 % (enter your response as a percentage rounded to two decimal places)