Dimensions 14383

The living room has dimensions of 40 dm and 50 dm. A square meter of wooden floor costs 13 euros. How much do we pay to lay a wooden floor in the living room?

Correct answer:

x =  260 Eur

Step-by-step explanation:

$$\begin{gathered} a=40\text{dm}\to \text{m}=40:10\text{m}=4\text{m} \\ b=50\text{dm}\to \text{m}=50:10\text{m}=5\text{m} \\ S=a\cdot b=4\cdot 5=20{\text{m}}^2 \\ x=13\cdot S=13\cdot 20=260\text{Eur} \end{gathered}$$

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