please answer question 3 a,b

Question 3. Let's go back to the planned (original) scenario: As the project was about to start, the Project Manager lost the staff and equipment for activity A. The company promised to give her new staff and equipment for activity A within 5 days of the start of the project. The company's logic was that the PM could use the large amount of total float available to activity A without hurting the project. However, the PM had already leased a piece of equipment for activity M for $1500/day based on the early" dates of the original schedule. After speaking to the leasing company, she learns that the payment she has already made for the equipment is not refundable, but the equipment is available, and the lease could be extended for the same cost ($1500/day) for as long as needed. She also found a temporary staffin company who was able to offer her skilled employees and equipment on an hourly base. So another option would be that she could use the temporary crews (staff + equipment) and not delay activity A. The staffing company offered her two types of crews with different pricing: Crew A: One staff and one equipment for an hourly rate of $40 per working hour. This productivity rate of this crew is a bit slower. It will them 3 extra days to finish activity A. Crew B: 2 staff and one equipment, costing $500 per day. With 2 staff, this crew will have a better producitivity rate. But they will still one more day compare to the original plan to finish A. a) Between the above three scenarios, which one will impose the least cost on her project? b) What will be the impact(s) on schedule for each scenario? i.e., Apart from delaying A and M. what impact would the first scenario have from a scheduling perspective? Support your logic for this questions with documentation (i.e. calculation/revised networks/etc.). 2 Duration Predecessor 7 3 Activity A B E F H P M G L N K Q w T S R 9 5 5 7 11 2 6 10 14 3 12 8 A, B, L A, B E MP HF G K, Q. W KQ, W G Question 2. When the project was executed, not all the activities were performed according to the schedule. Here is what the actual scenario was: Activity C took 6 days to finish, activity Q took 8 days to finish, the start of activity F was delayed for 20 days, and the start of activity M was delayed for 29 days. Draw the revised PDM and identify the new duration of the project based on the abovementioned actual scenario. Revise the schedule and list the critical path(s). Highlight all activities on critical path with color *(note the new terminology: actual vs. planned)