Given the following information: Activity A takes one week. Activity B takes three weeks. Activity C takes two weeks. Activity D takes five weeks. Activity A starts at the same time as Activity B. Act

The correct answer is C. 10 weeks. Activities A (1 week) and B (3 weeks) run in parallel. Activity C cannot start until BOTH A and B are complete, so C starts at the end of week 3 (the later of the two) and finishes at the end of week 5 (3 + 2). Activity D starts at week 5 and takes 5 weeks, finishing at week 10.

Predictive, Plan-Based Methodologies

Question

Given the following information:
Activity A takes one week.
Activity B takes three weeks.
Activity C takes two weeks.
Activity D takes five weeks.
Activity A starts at the same time as Activity B.
Activity C follows Activity B and Activity A.
Activity D follows Activity C.
How long will it take to complete the project?

Options

A8 weeks
B9 weeks
C10 weeks
D11 weeks

How the community answered

(20 responses)

A
5% (1)
B
5% (1)
C
80% (16)
D
10% (2)

Explanation

Activities A (1 week) and B (3 weeks) run in parallel. Activity C cannot start until BOTH A and B are complete, so C starts at the end of week 3 (the later of the two) and finishes at the end of week 5 (3 + 2). Activity D starts at week 5 and takes 5 weeks, finishing at week 10. The critical path is B → C → D = 3 + 2 + 5 = 10 weeks. Activity A (1 week) is not on the critical path since it finishes before B.

Topics

#Activity sequencing#Project duration calculation#Critical path method#Schedule network analysis

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