Water level

What is the area of the water level of the pool, if after filling 25 m³ of water level by 10 cm?
a) 25 m²
b) 250 m²
c) 2500 dm²
d) 25,000 cm²

Result

x = (Correct answer is: b)

Step-by-step explanation:

$$\begin{gathered} V=25{\text{m}}^3 \\ c=10\text{ cm}\to \text{ m}=10\mathrm{/}100\text{ m}=0.1\text{ m } \\ S=V\mathrm{/}c=25\mathrm{/}0.1=250{\text{m}}^2 \\ x=b \end{gathered}$$

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