Courtyard oak bricks

The castle courtyard, with an area of 100 m², is paved with oak cubes with an edge of 8 cm. Approximately 164 bricks were used to pave m². One dm³ of oak wood weighs 0.8 kg. Calculate the weight of all the bricks used to pave the courtyard.

Final Answer:

m =  6400 kg

Step-by-step explanation:

$$\begin{gathered} S=100{\text{m}}^2 \\ a=8\text{cm}\to \text{m}=8:100\text{m}=0.08\text{m} \\ V=S\cdot a=100\cdot 0.08=8{\text{m}}^3 \\ \rho =0.8\cdot 1000=800{\text{kg/m}}^3 \\ m=\rho \cdot V=800\cdot 8=6400\text{kg} \end{gathered}$$

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