Question: Consider a project with the following activities. Predecessor Activity A B D E F Duration 4 12 8 16 4 36 Finish-to-start lag 0 0

Consider a project with the following activities.

Consider a project with the following activities. Predecessor Activity A B D E F Duration 4 12 8 16 4 36 Finish-to-start lag 0 0 0 0 A A A D B E F G H 0 10 0 0 G H I 10 28 30 0 0 (a) Explain the differences between total slack and free slack of an activity in a project network. (b) Draw the project network. Determine the early start, late start, early finish and late finish times of each activity. Find the critical path of the project. How long will the project take? What are the total slack and free slack of each activity? Describe the effect on the project network if the start time of activity E is delayed. (c) After further detail review, the following lag relationships are found. Lag Lag relationship Finish-to-finish B to E Finish-to-finish F to G Start-to-start G to I Finish-to-finish H to I 14 18 20 10 Redraw the project network and recalculate the early start, late start, early finish and late finish times of each activity. What is the project duration? Is there any activity that has critical start time but the finish time is not critical

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