Răspuns :
Răspuns:
v-masa vasului
z-masa zaharului
v+z=450->v=450-z
v+z/2=250->v=250-z/2
Atunci: 450-z=250-z/2
450-250=z-z/2
200=z/2
z=2x200
z=400
v=450-z
v=450-400
v=50 g
Răspuns:
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