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O-LevelAdditional MathematicsFunctions4037/21 · May/June 2018 · Q14 Marks

A, B and C are subsets of the same universal set.

  1. (i)Write each of the following statements in words.
  2. (i)(a)A ⊄ B[1]
  3. (i)(b)A ∩C = Ø[1]
  4. (ii)Write each of the following statements in set notation.
  5. (ii)(a)There are 3 elements in set A or B or both.[1]
  6. (ii)(b)x is an element of A but it is not an element of C.[1]

Mark scheme

Marking points from the official mark scheme (May/June 2018). The mark or mark type is shown in brackets.

  1. [1] (a) A is not a [proper] subset of B oe
  2. [1] (b) A and C are mutually exclusive oe or A intersection C is the empty set oe
  3. [1] (ii)(a) n(A∪B)=3
  4. [1] (ii)(b) x∈(A∩C') oe

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About this question

Topic
Functions, O-Level Additional Mathematics (syllabus 4037). Structured question, 4 marks.
Source
O-Level Additional Mathematics, May/June 2018 Paper 2 Variant 1, question 1.

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