Mathematics 0580 · IGCSE · Limits of accuracy

Limits of accuracy — practice question

Neha has a ribbon with a length of 23 cm, measured correct to the nearest cm. She then cuts off a section with a length of 87 mm, measured correct to the nearest mm.
(main)[3]

Work out the lower bound and upper bound for the length of ribbon remaining. Give your answer in centimetres.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The correct answers are $13.75$ and $14.85$.” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI