Garden rain calculation

In the garden of 860 square meters, 4 millimeters of water rained down. How many 10-liter pitchers would we pour this mystery on just as heavily?

Final Answer:

n =  344

Step-by-step explanation:

$$\begin{gathered} S=860{\text{m}}^2\to {\text{dm}}^2=860\cdot 100{\text{dm}}^2=86000{\text{dm}}^2 \\ h=4\text{mm}\to \text{dm}=4:100\text{dm}=0.04\text{dm} \\ V=S\cdot h=86000\cdot 0.04=3440{\text{dm}}^3 \\ {V}_1=10\text{l}\to {\text{dm}}^3=10\cdot 1{\text{dm}}^3=10{\text{dm}}^3 \\ n=V/V_1=3440/10=344 \end{gathered}$$

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