Maths Olympiad Prep

Library / /52 of 472

, 2009

Algebra Difficulty 1.0 Junior Find the answer Canada

If w=4w = 4, x=9x = 9, and z=25z = 25 then wx+xz\sqrt{\dfrac{w}{x}} + \sqrt{\dfrac{x}{z}} equals

(A) 58\dfrac{5}{8} (B) 1915\dfrac{19}{15} (C) 77225\dfrac{77}{225} (D) 181225\dfrac{181}{225} (E) 25\dfrac{2}{5}

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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.