Maths Olympiad Prep

Library / /30 of 387

, 1998

Algebra Difficulty 1.0 Junior Find the answer Canada

If y5=5\sqrt{y-5} = 5 and 2x=82^{x} = 8, then x+yx+y equals

(A) 1313 (B) 2828 (C) 3333 (D) 3535 (E) 3838

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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.