If the blueprint shows \(\frac{\mathrm{1}}{\mathrm{2}}\) inch for every 3 feet, then 1 inch represents 6 feet.
The actual dimensions of a room \(1\frac{\mathrm{1}}{\mathrm{2}}\) inches × 2 inches would be (\(1\frac{\mathrm{1}}{\mathrm{2}}\)* 6) by (2 × 6) or 9 feet by 12 feet.
If the blueprint shows \(\frac{\mathrm{1}}{\mathrm{2}}\) inch for every 3 feet, then 1 inch represents 6 feet.
The actual dimensions of a room \(1\frac{\mathrm{1}}{\mathrm{2}}\) inches × 2 inches would be (\(1\frac{\mathrm{1}}{\mathrm{2}}\)* 6) by (2 × 6) or 9 feet by.