2002 Math OSP, Number 11

Probability Level pending

n people organization managers will be divided into 4 commissions that follows these criterias: (i) each member is in exactly 2 commissions, and (ii) each 2 commissions has exactly one joint member. What is n?

The answer is 6.

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1 solution

Saya Suka
Apr 4, 2021

4(4-1)/2 =6

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