Consider the project given below with the normal and crash costs (in thousands of PhP) and times (in weeks): Activity Immediate Predecessor Normal Time Crash Time Normal Cost Crash Cost A 2 200 250 B A 3 600 850 A 1 100 100 D B,C 2 650 900 450 500 E B 2 500 F E,D 3 620 G F 1 500 600 H E,D 4 2 600 900 1. Construct the AOA network for the project. 2. Determine the expected completion time of the project using both normal and crash times and the corresponding costs. Also include the critical path for each situation. 3. What is optimal cost of the project if the decision maker wants to finish it in 14 weeks? 351 43

Hoff & Catherine Building company has plans to build a City Centre for the Government. The stages of the project are depicted in the table below: Activity Immediate Predecessor Duration (weeks) Remarks A - 2   B A 7   C B 5   D C 6   E C 4   F E 10   G D 7   H E, G 12   I C 7   J F, I 9   K J 4   L J 5   M H 5   N K,L 10     Calculate the earliest start, earliest finish, latest start, latest finish and slack time for each activity. Calculate the critical path How long does it take to complete the project assuming no delays?

The network diagram and task times for a project are shown below. A2 Task A1 A2 A3 A4 A5 A₁ A3 Duration (days) 6 5 9 2 6 What is the slack for activity A3? A4 +>> A5

Dave Fletcher was able to determine the activity times for constructing his laser scanning machine Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times: Time Activity (weeks) A 6 B 8 с 2 D 1 Immediate Time Predecessor(s) Activity (weeks) E 3 F 7 A A Dave's earliest start (ES) and earliest finish (EF) are: G H 9 8 Immediate Predecessor(s) B B C, E D.F