200 kg grâu....160 kg faina
X kg grâu.....420 kg faina
X=(200×420):160
X=84000:160=525 kg grâu
Cate kg de făină se obtin din 3 tone grau?
3 tone grau= 3000kg grâu
200kg grâu....160 kg faina
3000 kg grâu....x kg faina
X=(3000×160):200
X=30×80=2400 kg faina