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Sagot :

1) 1h = 60min

22 coups×60min = 1 320 coups en 1h


2) 1 000 coup de rame ÷ 60 ≈ 17h


3) 1h = 1 320 coups

1 320coups×9mètres = 11 880 mètres soit 11,88km

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