Tank

1080 hectoliters of water were flowed into a cuboid tank whose bottom dimensions are 9 m and 15 m. This filled 40% of the tank's volume. Calculate the tank's depth.

Correct answer:

h =  2 m

Step-by-step explanation:

$$\begin{gathered} a=9 \\ b=15 \\ V=1080/10=108 \\ {h}_1=V/(a\cdot b)=108/(9\cdot 15)=\frac{4}{5}=0.8 \\ h=h_1/0.40=0.8/0.40=2\text{m} \end{gathered}$$

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