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Calculate the upper bound for the rectangle’s width.
Mathematics 0580 · IGCSE · Limits of accuracy
Limits of accuracy — practice question
A rectangle’s area is $150\text{ m}^2$, correct to the nearest square metre. Its length is $22$ m, correct to the nearest metre.
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Method used: bounds $150$ to $151$, $22\pm0.5$ or $21$ to $22$” …
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