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UKMT Intermediate Mathematical Challenge, 2012

Geometry Difficulty 1.0 Junior Find the answer United Kingdom

A rectangle with area $125$ cm $^2$ has sides in the ratio $4:5$ . What is the perimeter of the rectangle?

(A) $18$ cm (B) $22.5$ cm (C) $36$ cm (D) $45$ cm (E) $54$ cm

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