Consider a project consisting of four activities A, B, C, and D.

The following are constraints within which the project has to be conducted

A and B, the first activities of the project, can be started simultaneously.

C can be started only after A is completed.

D can be started only after B is completed

Suppose the activity times for the activities are A = 4 weeks, B = 3 weeks, C = 2 weeks, D = 3 weeks.

1. How long does the project take to complete?
2. Suppose there is another activity E that takes 3 weeks to complete. Additional analysis reveals that E can be started only after both A and B are completed. 1. How long does the project take to complete now