Q-3 Given the following project network: Show Graph of detail of your work with networking 20 points Show Detail of your work Activity (nodes)

this is my exam review question, help me solve asap

Q-3 Given the following project network: Show Graph of detail of your work with networking 20 pointsShow Detail of your workActivity (nodes) Optimistic Probable(days)Most Probable(days)Pessimistic Duration (days)1 -2121 – 31.5512162 – 43 – 4a1014223-512165124 – 5485 – 7N W8186-77-85a. Develop a project network?5 pointsb. Identify the Critical Path Activities for each node? 5 pointsc. Expected project completion time? 5 pointsd. Based only on the critical path, what is the estimate probability that the project can be completed in 45 or fewer days,5 points