12. The following precedence network is used for assembling a product. You have been asked to achieve an output of 240 units per elight hour day, All times in this network are in minutes. Balance the line using the following rule: assign tasks to workstations on the basis of most foliowing tasks (Rule 1). Use greatest positional weight (Rule 2) as a tiebreaker. What is the utilization (%) of the worker in the last workstation? 02 04 02 12 04 10 None of the provided options . 0.50 675 40 O 100