Răspuns :
md=10g
mapa=40g
ms=md+mapa=10+40=50g
50g.......10g
100g.......x g
50/100=10/x
x=100×10/50=10×10/5=100/5=20g
C=20℅
mapa=40g
ms=md+mapa=10+40=50g
50g.......10g
100g.......x g
50/100=10/x
x=100×10/50=10×10/5=100/5=20g
C=20℅