calculate the volume of a piece of oak with a density of 720 kg per m^3 and a mass of 25 kg.
volume = mass/density
$${\mathtt{volume}} = {\frac{{\mathtt{25}}}{{\mathtt{720}}}} \Rightarrow {\mathtt{volume}} = {\mathtt{0.034\: \!722\: \!222\: \!222\: \!222\: \!2}}$$
volume ≈ 0.034722 m3 or 34722 cm3
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