Maths Olympiad Prep

Library / /55 of 413

, 1998

Number theory Difficulty 1.0 Junior Find the answer Canada

The number 45674567 is tripled. The ones digit (units digit) in the resulting number is

(A) 55 (B) 66 (C) 77 (D) 33 (E) 11

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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.