Dimensions 67784

Earthenware tiles have dimensions of 20 cm, 20 cm, and 2 cm. The package, in which there are ten pieces of tiles, weighs 20 kg. Determine the density of the stoneware from which the tiles are made.

Correct answer:

ρ =  2500 kg/m³

Step-by-step explanation:

$$\begin{gathered} a=20\text{cm}\to \text{m}=20:100\text{m}=0.2\text{m} \\ b=20\text{cm}\to \text{m}=20:100\text{m}=0.2\text{m} \\ c=2\text{cm}\to \text{m}=2:100\text{m}=0.02\text{m} \\ n=10 \\ m=20\text{kg} \\ V=a\cdot b\cdot c\cdot n=0.2\cdot 0.2\cdot 0.02\cdot 10=\frac{1}{125}=0.008{\text{m}}^3 \\ \rho =m/V=20/0.008=2500{\text{kg/m}}^3 \end{gathered}$$

Try another example