Maths Olympiad Prep

Library / /118 of 413

, 2002

Number theory Difficulty 1.0 Junior Find the answer Canada

Which of the following expressions is equal to an odd integer?

(A) 3(5)+13(5)+1 (B) 2(3+5)2(3+5) (C) 3(3+5)3(3+5) (D) 3+5+13+5+1 (E) 3+52\frac{3+5}{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.