There are 120 diplomats at a gala. Every diplomat is either a spy or a civilian. You know that any time two diplomats shake hands, at least one of them is a spy. Assuming at this gala everyone shakes hands with everyone else, how many civilians are in attendance?

There are 120 diplomats at a gala. Every diplomat is either a spy or a civilian. You know that any time two diplomats shake hands, at least one of them is a spy. Assuming at this gala everyone shakes hands with everyone else, how many civilians are in attendance?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section: Chapter Questions

Problem 40CT: There are 10 applicants for three sales positions at a department store. All of the applicants are...

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