# Archimedes Laboratory Project™ Puzzles & Mental Activities that Enhance Critical and Creative Thinking Skills

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SUNDAY PUZZLE #50
 Arnold put 50 dollars in the bank. During the month he withdraws as shown opposite. He was eventually surprised to see that the balance column adds to \$51.00 instead of \$50.00. It isn’t interest, so where did the extra dollar come from? Arnold a placé 50 dollars en banque. Au cours du mois, il effectue des retraits comme illustré ci-contre. A la fin du mois, il est surpris de constater que la somme des retraits dans la colonne des débits s’élève à 51.00 \$, au lieu des 50.00 \$ attendus. Vu que ce ne sont pas des intérêts, d'où vient-il donc le dollar supplémentaire? Arnold ha messo 50 dollari in banca. Nel corso del mese fa alcuni prelievi come illustrato qui a lato. A fine mese, è sorpreso di vedere che nella colonna dei prelievi la somma raggiunge \$ 51.00 invece dei \$ 50.00 previsti. Non sono interessi, per cui da dove viene il dollaro in più? You can comment and discuss this puzzle on our FaceBook or Blogger web page. › Click to show/hide the solution

Text and images by Gianni A. Sarcone
Labels: SUNDAY PUZZLE, puzzles to solve, recreational mathematics, disappearing one dollar
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