Răspuns:
1 sapun =160 g ...........120 g grasime......................... 40g soda caustica
32kg=32000 g sapun ...... x g grasime......................y g soda caustica
x=\frac{120*32000}{160} =24000 g
160
120∗32000
=24000g grasime
y=\frac{40*32000}{160} =8000 g
160
40∗32000
=8000g soda caustica