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, 2011

Algebra Difficulty 1.0 Junior Find the answer Canada

Kalob's window measures $50\text{ cm} \times 80\text{ cm}$ . Which of the following measurements would give an area that is exactly double the area of his window?

(A) $25\text{ cm} \times 160\text{ cm}$ (B) $40\text{ cm} \times 100\text{ cm}$ (C) $50\text{ cm} \times 160\text{ cm}$ (D) $100\text{ cm} \times 160\text{ cm}$ (E) $50\text{ cm} \times 120\text{ cm}$

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.