PMI PMP Project Management

Answer: b - You will have 5 more lines of communication.

The formula for lines of communication is (n x (n-1)/ 2
5 x 4 / 2 was 10 lines of communication.
Now you have 6 x 5 / 2 or 15 lines, so you have 5 more.

Key Takeaway: You may not think the engineer on one side of the building would ever talk to the marketing person on the other side of the building, but from experience, somehow they will find a way to get together on the one thing that’s going wrong with the project. Control your communications and clearly articulate project status to avoid riding the rumor mill.