Sample PMP Question: September 2014

How many lines of communication are there on your project, if your project involves 17 people excluding the sponsor:

A.    112
B.    105
C.    153
D.    68


C: The formula is (n*(n-1))/2, where n=18.  You should include the sponsor in the total number of people.

Question data supplied by: 1000 Challenge PMP Questions
Author: Mohit Arora
Available now at

About Kevin Archbold

Kevin Archbold, PMP, PMI-SP, has over 30 years of project management experience with large and small organizations in a variety of industries, including automotive, nuclear, telecommunications, trucking, IT, recruiting, mining, construction, and government. Kevin has presented at local and national levels within the Project Management Institute (PMI), is the winner of a local chapter PMI Project of the Year Award, and is the current president of a PMI Chapter.

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