Question 2.109

79. In the accompanying order-requirement digraph, determine which tasks, if shortened, would reduce the earliest completion time and which would not. Then find the earliest completion time if task T5 is reduced to time length 7. What is the new critical path?

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79.

T1, T5, and T7 if shortened would reduce the earliest completion time, while shortening the other tasks will not; 29; T1T4T7.