The network below represents a project being analyzed by the critical path method. Activity durations in weeks, are given in the following table and represented also by the network diagram below:

A B C D E F G H I J

5 2 12 3 5 1 7 2 10 6

a) What task must be on the critical path, regardless of activity durations?

b) What is the duration of path A-B-E-H-J?

What is the critical path of this network?

What is the length of the critical path?

What is slack time at activity H?

What is the Late Finish of activity H?

If activity C were delayed by two weeks, what would happen to the project duration?