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Solutions ENIGMES 2
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This module requires the Letterman component.
Solutions ENIGMES 2
1)
10 cm
car pour la bougie A, 14 cm en 3h30 donc 2 cm en 30'. Après 2h reste 6 cm. Donc 6 cm en 3h pour la bougie B.
2)
13 couples
3)
2,5 ; 3,5 ; 4,5 ; 5,5 ; 6,5
Tests sur la somme 6 : (3;3) puis (1;5) puis (2;4) : NON
Tests sur la somme 12 : (5;7) puis (6;6) : NON donc pas de solutions entières
D'où tests avec des décimaux et 2,5 ; 3,5 ; 4,5 ; 5,5 ; 6,5
4)
60 sommets et 90 arêtes
car (12x5 + 20x6)/3 =60 et (12x5 + 20x6)/2 =90
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