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UKMT Pink Kangaroo, 2018

Combinatorics Difficulty 2.0 Junior Find the answer United Kingdom

Monika plans to travel across the network in the diagram from point $P$ to point $Q$ , travelling only in the direction of the arrows. How many different routes are possible?

(A) $20$ (B) $16$ (C) $12$ (D) $9$ (E) $6$

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