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UKMT Grey Kangaroo, 2023

Combinatorics Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

Some beavers and some kangaroos are standing in a circle. There are three beavers in total and no beaver is standing next to another beaver. Exactly three kangaroos stand next to another kangaroo. What is the number of kangaroos in the circle?

(A) $4$ (B) $5$ (C) $6$ (D) $7$ (E) $8$

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