UKMT Pink Kangaroo, 2022

Combinatorics Difficulty 1.0 Junior Find the answer United Kingdom

Katrin arranges tables measuring $2$ m by $1$ m according to the number of participants in a meeting. The diagrams show the plan view for a small, a medium and a large meeting. How many tables are needed for a large meeting?

(A) $10$ (B) $11$ (C) $12$ (D) $14$ (E) $16$

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