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The quickest path - Colegiul National Mihail Eminescu (Satu Mare - Roumanie) Lycée Aristide Briand (Gap)

Titre du sujet: 
The quickest path
Etablissement(s) jumelé(s):
You're on the beach and you throw a stick in water. Your dog will run to catch the stick. Of course, the speed of running on the beach is different from the one of swimming through the water. What is the fastest path that your dog can reach the stick?
Mots clés:

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Sujet | by Dr. Radut