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O-LevelMathematicsNumber4024/11 · Oct/Nov 2015 · Q113 Marks

An empty box has a mass of 0.8kg correct to the nearest 0.1 kg.

  1. (a)Write down the lower bound for the mass of the empty box.[1]
  2. (b)The box is filled with books. The total mass of the box and the books is 6kg correct to the nearest kilogram. Work out the lower bound for the mass of the books.[2]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2015). The mark or mark type is shown in brackets.

  1. [1] (a) (0).75
  2. [2] (b) 4.65
  3. [2] M1 for 5.5 - (0).85

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2015 Paper 1 Variant 1, question 11.

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