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⋅ 10=24 dm b=1.8⋅ 10=18 dm S1=1⋅ 1=1 dm2 S2=a⋅ b=24⋅ 18=432 dm2 n=S2/S1=432/1=432a=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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