a clear answer please

5.1. Producing widgets involves fourteen production tasks, lettered a through n, below. For each task, the time required to accomplish it is given, and the immediately preceding task. (19) The manager expects. to produce 300 widgets per eight-hour shift. The workers are allowed two 10-minute coffee breaks per shift, and 40 minutes is allocated to cleanup and maintenance tasks. a. Is it possible to accomplish the objective of 300 widgets per shift with only one workstation? (1) b. What is the maximum possible output with 14 workstations (one workstation devoted to each task)? (1) c. Draw the precedence diagram for this process. (13) d. What is the theoretical minimum number of workstations which will be required to achieve an output of 300 pieces per shift? (4)