Explications:
1. 75% en or
2. m= 3,5 * 18 /24 = 2,625
4.proportion d'or = 2,9/5. soit x/24
donc x=2,9*4,8=13,92=14/24
(4,8 car 24/5=4,8)
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Explications:
1. 75% en or
2. m= 3,5 * 18 /24 = 2,625
4.proportion d'or = 2,9/5. soit x/24
donc x=2,9*4,8=13,92=14/24
(4,8 car 24/5=4,8)