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Task 6: Plan and manage schedulecritical path methodproject schedulingnetwork analysisactivity dependencies
PMP · Question 22 · Task 6: Plan and manage schedule
A project has the following activity durations and dependencies:<br/>- Activity A: 4 days (no predecessors)<br/>- Activity B: 6 days (predecessor: A)<br/>- Activity C: 3 days (predecessor: A)<br/>- Activity D: 5 days (predecessors: B, C)<br/>- Activity E: 2 days (predecessor: D)<br/><br/>What is the total project duration in days? (Enter numbers only)
A project has the following activity durations and dependencies:<br/>- Activity A: 4 days (no predecessors)<br/>- Activity B: 6 days (predecessor: A)<br/>- Activity C: 3 days (predecessor: A)<br/>- Activity D: 5 days (predecessors: B, C)<br/>- Activity E: 2 days (predecessor: D)<br/><br/>What is the total project duration in days? (Enter numbers only)
How to approach this question
Calculate the critical path by finding the longest path through the network. Add up the durations of activities on the critical path.
Full Answer
Critical path: A(4) → B(6) → D(5) → E(2) = 17 days. Path A-C-D-E = 4+3+5+2 = 14 days, which is shorter.
Common mistakes
Students often add all activity durations (20 days) or calculate the A-C-D-E path (14 days) instead of finding the critical path A-B-D-E (17 days).
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