Multumesc anticipat!
Va rog frumos!
Dau coroană!
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Răspuns:
20lei kg zahar
30lei kg de faina
Explicație pas cu pas:
5kg zahar 3kg faina= 190lei
3kg zahar 3kg faina= 150lei
2kg diferenta de zahar=40lei:2=20lei kg de zahar
5kg de zahar=20•5=100lei
190lei-100lei=90lei
3kg faina=90lei
90:3= 30lei kg de faina
Succes!!