Răspuns:
[tex]\mathcal{V}_{cada}=0.(6)\times 0.(6)\times 0.8 =\frac{2}{3}\times\frac{2}{3}\times\frac{4}{5}=\frac{16}{45}m^3 \\ \\ \mathcal{V}_{apa}=0.9\times\frac{16}{45}=\frac{9}{10}\times\frac{16}{45}=\frac{8}{25}=0.32~m^3=320~dm^3=320~l[/tex]
Explicație pas cu pas:
