Question 2 The information for a project is given in the Table below (time in weeks): Activity Immediate Activity time predecessors (t) A 8 B A 2 A 3 D A 60 E B 60 |- -|-101 F G H D EF G 1 2 2 20 10 10 12 3 HI J K J K 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 Activity Predecessors Tim Cost Time Cost A 4 30 3 40 B 7 60 5 200 A 1 80 180 D B 4 40 2 80 E B 5 110 2 275 F 5 90 2 1690 G D 2 60 190 H E 2 70 1 110 I F, G, H 2 140 2 140 T.C=680 TelEl D 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. Normal Crashed Activity Predecessors Time Cost Time Cost 3 50 270 B A 5 60 3 180 A 3 70 2 110 D 10 50 1050 E B 6 100 3 250 F C 7 90 4 390 G D, E, F 5 50 4 1201 T.C = 4701