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Sagot :

Réponse:

Exercice 32: BE = 740-AB-FA-FE

= (740-240-240)/2

=260/2

=130

donc BE = 130

1 hectare = 31kg de fumier

31 /0,41=75,61

100*75,61=7561

Guillaume devra apporter 7561 kg de fumier

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