Mushroom drying weight

Dried mushrooms are ten times lighter than fresh. In the Smithy family, the father found 10 kg, and the mother and children found 20 kilograms of mushrooms. How many kg of dried mushrooms could they get?

Final Answer:

m =  3 kg

Step-by-step explanation:

$$\begin{gathered} a=10\text{kg} \\ b=20\text{kg} \\ c=a+b=10+20=30\text{kg} \\ m=c/10=30/10=3\text{kg} \end{gathered}$$

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