textul lipseste si e cam greu ca cineva sa-l ghiceasca
1.din ms=20g si c=20%, calculez md
20/100= md/20---> md= 4g
Se adauga 50g sare ??????
c/100= (4+50)/(20+50)--------------------calculeaza c !!!
din ms=800g si c=15%,calculez md
15/100=md/800---> md= 120g
probabil ca se adauga 300g apa si 20g alcool ??????
c,final/100= (120+20)/ (800+20+300)= --------------------calculeaza c !!!!