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Algebra Difficulty 1.0 Junior Find the answer Canada

The ages of three contestants in the Pascal Contest are 14 years, 9 months; 15 years, 1 month; and 14 years, 8 months. Their average (mean) age is

(A) $14$ years, $8$ months (B) $14$ years, $9$ months (C) $14$ years, $10$ months (D) $14$ years, $11$ months (E) $15$ years

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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.