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Mathematics 15 Online
OpenStudy (mitu12):

A model house is 12cm wide. If it was built with a scale of 3cm:4m then how wide is the real house?

OpenStudy (anonymous):

\[\frac{ 12cm }{ x }=\frac{ 3 }{ 4 }\] Cross multiply and you get \[48=3x \] Divide both sides by 3 x=16

OpenStudy (mitu12):

ok thanks

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