Question 1 The information for a project is given in the Table below (time in weeks): Activity Immediate Activity predecessors time (t) A 3 B A 4 B 4 D B 1 E B 1 F B 3 G C, D, E, F 2 H E, F 1 1 G H 2 J 1 1 = a) Draw a network for this project b) Determine the critical path c) Determine the earliest and latest activity times d) Determine slack time for each activity Question 2 The information for a project is given in the Table below (time in weeks): Activity Immediate Activity predecessors time (t) . 8 B A 2 A 3 D 60 E B 60 F 2 G D 2 H EF 20 1 G 10 J H,1 10 J 12 L K 3 a) Draw a network for this project b) Determine the critical path c) Determine the earliest and latest activity times d) Determine slack time for each activity = Question 3 The activities necessary for the completion of one project are listed in the table below. The table reports normal time and normal cost for each activity. Crashed time and cost for each activity are also reported (time in this example is in weeks). Crash the project by 6 weeks with minimum increase in total cost. Each time show the critical path, activity/ies crashed, and total cost of the project. Normal Crashed Time Cost Time Cost Predecesso Activity rs A B D B E B F G D H E F, G, H 4 7 1 4 5 5 2 2 2 30 60 80 40 110 90 60 70 140 T.C = 680 3 5 1 2 2 2 1 1 2 40 200 80 80 275 690 90 110 140 Question 4 The activities necessary for the completion of one project are listed in the table below. The table reports normal time and normal cost for each activity. Crashed time and cost for each activity are also reported (time in this example is in weeks). Crash the project by 4 weeks with minimum increase in total cost. Each time show the critical path, activity/ies crashed, and total cost of the project. Crashed Time Cost Activity Predecesso rs D E F G A B D, E, F Normal Time Cost 3 50 5 60 3 70 10 50 6 100 7 90 5 50 T.C = 470 2 3 2 10 3 4 4 70 180 110 50 250 390 120