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UKMT Junior Mathematical Challenge, 2019

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

A rectangle is three times as long as it is high. The area of a square is twelve times the area of the rectangle. What is the ratio of the perimeter of the square to the perimeter of the rectangle?

(A) $12:1$ (B) $6:1$ (C) $4:1$ (D) $3:1$ (E) $2:1$

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