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, 2019

Number theory Difficulty 2.0 Junior Find the answer United Kingdom

What is the last digit of the smallest positive integer whose digits add to $2019$ ?

(A) $1$ (B) $4$ (C) $6$ (D) $8$ (E) $9$

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Source: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.