Density of the concrete

Find the density of the concrete of the cuboid-shaped column that has dimensions of 20 x 20 cm x 2 m if the weight of the column is 200 kg.

Correct answer:

h =  2500 kg/m³

Step-by-step explanation:

$$\begin{gathered} a=20\text{cm}\to \text{m}=20:100\text{m}=0.2\text{m} \\ b=20\text{cm}\to \text{m}=20:100\text{m}=0.2\text{m} \\ c=2\text{m} \\ m=200\text{kg} \\ V=a\cdot b\cdot c=0.2\cdot 0.2\cdot 2=\frac{2}{25}=0.08{\text{m}}^3 \\ h=m/V=200/0.08=2500{\text{kg/m}}^3 \end{gathered}$$

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