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Sunday Afternoon Maths LXI

 Posted on 2017-08-20 

XYZ

Which digits \(X\), \(Y\) and \(Z\) fill this sum?
$$ \begin{array}{cccc} &X&Z&Y\\ +&X&Y&Z\\ \hline &Y&Z&X \end{array} $$

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If you enjoyed these puzzles, check out Sunday Afternoon Maths LXVI,
puzzles about clocks, or a random puzzle.
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