Mathematics 0580 · IGCSE · Limits of accuracy

Limits of accuracy — practice question

Jenna has a wire of length 68 cm, rounded to the nearest cm. She cuts off two shorter sections from it: one section is 4.7 cm long, correct to the nearest mm; the other section is 10.0 cm long, correct to the nearest mm.
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Calculate the lower bound and the upper bound for the length of wire remaining.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Lower bound = 52.7” …

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