UKMT Pink Kangaroo, 2017

Combinatorics Difficulty 2.0 Junior Find the answer United Kingdom

Some girls were dancing in a circle. Antonia was the fifth to the left from Bianca and the eighth to the right from Bianca. How many girls were in the group?

(A) $10$ (B) $11$ (C) $12$ (D) $13$ (E) $14$

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