# Bathroom 2

A bathroom is 2.4 meters long and 1.8 meters wide. How many square tiles 1 dm on each side are to be used to cover it?

Result

n =  432

#### Solution:

$a=2.4 \cdot \ 10=24 \ \text{dm} \ \\ b=1.8 \cdot \ 10=18 \ \text{dm} \ \\ S_{1}=1 \cdot \ 1=1 \ \text{dm}^2 \ \\ S_{2}=a \cdot \ b=24 \cdot \ 18=432 \ \text{dm}^2 \ \\ n=S_{2} / S_{1}=432 / 1=432$

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