10. Datele problemei : m,sol=400g m,diz=80g c%/
c% =(m,diz/m,sol)x100 , unde m,sol= m,diz +m,apa =>
c%=( 80/400)x1oo = 20%
11. c=15% m,diz=60x10³g m,sol=?
15/100= 60x10³/m,sol => m,sol= 60x100x10³/15 calculeaza
12.m,sol=50g, c=8%, m,diz=?
8/100= m,diz/50 => m,diz= 8x50/100 calculeaza
13. m,diz=25g , m,apa=475g c?
m,sol= m,diz+m,apa=> 25+475 m==.>500g sol; c= (25/500)x100 calculeaza
