Question: 4. The PERT network for a subcontracting project is shown below, where the activity times are in weeks: Use the enumeration method to solve the

4. The PERT network for a subcontracting project is shown below,

4. The PERT network for a subcontracting project is shown below, where the activity times are in weeks: Use the enumeration method to solve the problem by answering the following questions: (1} What are the critical path and the critical activities? (2) How long will it take to complete the entire project

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