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MathNet 2009-part-02 — 175 problems (EN–VI) Question 15

Math Olympiad Vault · MathNet 2009-part-02 — 175 problems (EN–VI)

Question 15

In a school there are $2008$ students. Students are members of certain committees. A committee has at most $1004$ members and every two students join a common committee.

a. Determine the smallest possible number of committees in the school.

b. If it is further required that the union of any two committees consists of at most $1800$ students, will your answer in (a) still hold?