Question

!)ms1=10g,
C1=2%,
ms2=200g,
C2=4%,
C3=?


2)ms1=200g
C1=5%
m apa=150
C2=?

Answer 1

ms1=10g
c1=2
md1=ms1*c1/100
ms1=0,2g
ms2=200g
c2=4
md2=ms2*c2/100
md2=8g
c3=(md1+md2)/(ms1+ms2)*100
c3=3,9


ms1=200g
c1=5
m apa=150g
md=ms1*c1/100
md=10
c2=md/(ms1+m apa)*100
c2=2,85