Maths Olympiad Prep

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, 2007

Algebra Difficulty 1.0 Junior Find the answer Canada

The number nn is doubled and then has yy added to it. The result is then divided by 2 and has the original number nn subtracted from it. The final result is

(A) nn (B) yy (C) n+yn+y (D) n+y2\frac{n+y}{2} (E) y2\frac{y}{2}

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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.