Dau coroana, repede cu tot cu rezolvari

ms1 = 400g
c1= 15%
c2= 30%
c1=100md/ms1
15=100md/400
md=400x15/100
md=60g
c2=100md/ms2
30=100x60/ms2
ms2=100x60/30
ms2=200g
400-200=200g apa evaporata
coroana? :)