3. (a) Figure 2 shows the partially completed Precedence Activity Network (PAN) in BS4335 of a software project. The dependencies and estimated duration of each of the activities A through K can be found in Figure 2. The project needs to be completed within 80 days. (i) Complete the PAN based on the project expected completion duration and the information provided in Figure 2. (ii) Show the formula applied for calculating the Earliest Start (ES) of activity F, and the formula applied for calculating the Latest Finish (LF) of activity H, based on Figure 2. (iii) Based on the completed PAN in part (i), identify two quick ways to check whether the completion of the project will be affected if activity E starts at Day 45. (iv) How do you quantitatively measure if any activities immediately followed in the PAN would be affected when activity C starts at Day 18? Write the formula to be used for the purpose. (v) .Update the affected section of the PAN when activity E starts at Day 45. Highlight the updating procedure first. (15 Marks) 10 10 15 TIS 10 K H Figure 2. The partial Precedence Activity Network in BS4335