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UKMT Pink Kangaroo, 2021

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

A caterpillar crawled up a smooth slope from AA to BB, and crept down the stairs from BB to CC. What is the ratio of the distance the caterpillar travelled from BB to CC to the distance it travelled from AA to BB?

(A) 1:11:1 (B) 2:12:1 (C) 3:13:1 (D) 2:1\sqrt{2}:1 (E) 3:1\sqrt{3}:1

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