Răspuns :
C=2%
ms=580g
------------------
md=?
------------------
C=md/ms·100⇒md=C·ms/100⇒md=2·580g/100⇒md=1160g/100⇒md=116g
ms=580g
------------------
md=?
------------------
C=md/ms·100⇒md=C·ms/100⇒md=2·580g/100⇒md=1160g/100⇒md=116g