Q2. [ Marks 20) A project is characterized by activities form A through F. the predecessor activities and the times required, and costs for both a regular and a crash program for each activity are shown in the following table: Activity Predecessor Activities Crashing cost per unit time 6 3 1 B D E F G H Time (weeks) Cost (AED 000s) Regular Crash Regular Crash program Program program Program 3 1 6 18 4 2 10 16 2 1 6 7 1 1 9 9 2 1 10 15 2 2 5 5 5 4 4 12 3 2 15 29 None A A BD E F 5 8 14 a. Construct a network diagram for this project. (Marks 3) b. Calculate the earliest completion time of the project. (Marks 3) c. Identify the critical activities. (Marks 3) d. Show the critical path(s). (Marks 2) e. What is the project earliest completion cost? (Marks 2) f. If the company wants to finish the project one week before its earliest completion time, which activity should you suggest to crash and what will be total project completion cost? (Marks 3) g. If the company wants to finish the project two weeks before its earliest completion time, which activity or activities should you suggest to crash and what will be total project completion cost? (Marks 4) SOLUTION: (add pages for your answer)