Question: A simple CPM network has three activities, D, E, and F. D is an immediate predecessor of E and of F. E is an immediate

A simple CPM network has three activities, D, E, and F. D is an immediate predecessor of E and of F. E is an immediate predecessor of F. The activity durations are D=4, E=3, F=7.

The critical path is D-E-F, duration 15.

The critical path is D-F, duration 12.

Slack at D is 3 periods.

Slack at E is 3 periods.

The critical path is D-E-F, duration 14.

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