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Project Completion Time

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Consider the network in the attachment.

1. Compute the earliest start time (ES) of activity G using a forward pass.

2. Compute the project completion time.

3. Compute the latest finish time (LF) of activity B using a backward pass.

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Solution shows step-by-step computation along with relevant explanation in each case.

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Let Ei represent the earliest start time for activity i such that all its preceding activities have been finished, and Ti be the activity completion time associated with activity i.

1. Using forward pass we can compute the earliest start time (ES) of activity G as below.

EA = 0
EC = EA + TA = 0 + 2 = 2
ED = EA + TA = 0 + 2 = 2
EE = EC + TC = 2 + 4 = 6
EG = Max[ED + ...

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