Practice Quiz

PMI PMP Project Management

Category - Communications Management

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8 people are working on Project Ocho. How many lines of communication are there?
  1. 8
  2. 25
  3. 28
  4. 56
  5. 63
Explanation
Answer: C - With 8 people working on the project, you'll have 28 lines of communication!

The formula for lines of communication is n x (n-1) / 2. So the answer to this one is (8 x 7 / 2) = 28.

Key Takeaway: The key is awareness that the number of lines of communication expands geometrically as you add people to the project. We’ve included a few more questions so that you can remember the formula.
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