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O-LevelMathematicsNumber4024/23 · May/June 2025 · Q213 Marks

The width of a rectangle is 5.4 cm, correct to the nearest 0.1 cm.

  1. (a)Write down the upper bound of the width of the rectangle.[1]
  2. (b)The perimeter of the rectangle is 26.4 cm, correct to the nearest 0.1 cm. Calculate the lower bound of the length of the rectangle.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2025). The mark or mark type is shown in brackets.

  1. [1] 5.45
  2. [2] 7.725
  3. B1 for 26.35
  4. M1 for (their 26.35 - 2 × their 5.45) / 2 oe

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, May/June 2025 Paper 2 Variant 3, question 21.

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