Răspuns:
Explicație:
ms1= 500g
c1= 50%
ms2= 800g
c2=30%
cfinal =cf
-se afla md 1 si md2
md1= c1.ms1 : 100
md1= 50 . 500 : 100= 250g
md2= c2. ms2 : 100
md2= 30 . 800 : 100= 240g
-se afla md final
md f= 250 + 240= 490 g
-se afla ms final
ms f= 500 + 800= 1300
-se afla c f
c f= md f.100 : ms f
c f= 490 .100 : 1300=37,69 %
c3= 2 . 37,69=75,38 %
md adaugat
c3= md3 .100 : msf
md3= c3.msf : 100
md3= 75,38 .1300 : 100= 979,94g
md adaug. = md3 - mdf =979,94 - 490=498,94 g
