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UKMT Grey Kangaroo, 2026

Number theory Difficulty 2.0 Junior Find the answer United Kingdom

In the addition shown, each letter represents a single digit and different letters represent different digits: $LMN + LNM = N4L$ . What is the value of $L+M+N$ ?

(A) $16$ (B) $17$ (C) $18$ (D) $19$ (E) $20$

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