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Sagot :

A)500/ 2 =250||6/2=3||1000/2=500||50/2=25. (Pour 4 personnes)|||4x3=12|||250x3=750||3x3=9||500x3=1500||25x3=75(pour 12 personnes). B)on cherche d’abord pour 1 portion : 500/8=62,5||8/6=1,33||1000/8=125||50/8=6,25. ?x62,5=700=11,2x62,5=700. ?x1,33=9=6,76x1,33=9. ?x125=2000=16x125=2000. ?x6,25=100=16x6,25=100.

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