Maths Olympiad Prep

Library / /348 of 475

, 1999

Number theory Difficulty 2.0 Junior Find the answer Canada

For how many different values of kk is the 4-digit number 7k527k52 divisible by 12?

(A) 00 (B) 11 (C) 22 (D) 33 (E) 44

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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.