A project consists of the following activities, normal durations (days), immediate predecessors, cost per day to crash ($000/day), and available days to crash.

a. Draw the precedence network.
b. Calculate the project duration using normal activity durations.
c. Determine the minimum-cost crashing plan that will take 16 days off the project duration.

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Normal Duration (days) Immediate Predecessor(s) Cost per Day to Crash (s000/ day) Available Days to Crash Activity 8 20 B, D B, D C, G 12