Decorating Maths: Linear Trim Take-Off and Stock Allowances

Decorating Maths: Linear Trim Take-Off and Stock Allowances

Original quantitative topic practice in English. All 24 questions are included in a shuffled order. Each question supplies its own data and model assumptions; use only those assumptions. Choose one answer. Practice target: 20/24, not an official examination pass mark. Keep full intermediate precision. These exercises cover the calculation scope in the title; they do not constitute a full Red Seal examination, trade qualification, site design or operating specification.
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A room is 6.5×4.25 m. Install trim around the perimeter except openings totalling 2.4 m. There are 9 planned finished pieces; allow 0.08 m EXTRA TOTAL per piece for end cutting. Add 5% reserve after end allowances. Stock is bought by total length in 3 m lengths; joining and remnant reuse are unrestricted in this estimating model. Calculate the purchased surplus above the allowance-inclusive estimate in metres. Keep intermediate values unrounded; round the final answer to 4 decimal places if needed.