Aquarium volume

The aquarium has a cuboid shape and dimensions a = 0.3 m, b = 0.85 m, c =?, V = ?. What volume has a body if, after dipping into the aquarium water level rises by 28 mm?

Correct answer:

V₂ =  7.14 l

Step-by-step explanation:

$$\begin{gathered} a=3\text{dm} \\ b=8.5\text{dm} \\ c=28\text{mm}\to \text{dm}=28:100\text{dm}=0.28\text{dm} \\ 1d{m}^3=1l \\ {V}_2=a\cdot b\cdot c=3\cdot 8.5\cdot 0.28=7.14\text{l} \end{gathered}$$

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