Răspunsuri

2014-02-10T14:45:32+02:00
C/100=md/ms
ms=m apei+m zahar
md= ma zahar
Rezulta ca c/100=25/125,rezulta ca c =20%.Sper ca te-am ajutat!
1 5 1
2014-02-10T15:56:27+02:00
Ms =100+25=125 g
md=25 g
c=100*md/ms=100*25/125=20%