Odpowiedź:
1:
ms =20g
mr = 80g + 20g = 100g
Cp = 20g * 100% : 100g
Cp = 20%
2:
ms= 60g
mr = 300g
Cp = 60g * 100% : 300g
3:
mr = 250g
Cp = 10%
ms = 250g * 10% : 100%
ms = 25g
4:
ms = 40g
mr = 40g *100% : 20%
mr = 200g