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Edexcel IGCSE Math B 2.D Number of elements Question Bank

Practise finding n(A) values from set notation by counting the correct Venn regions, including complements and combined regions.

Syllabus
First assessment 2018
Course
Math B 4MB1

Exam points

  • find n(A), n(A ∩ B') or n((A ∪ B)') by adding the correct Venn regions
  • use a universal total or labelled regions to count complements and combined sets

2.D Number of elements question 1

[Maximum number: 1]
Figure for Question 2.D Number of elements question 1 — Edexcel IGCSE Math B

E={2,3,4,5,6,7,8,9,10}\mathscr E=\{2,3,4,5,6,7,8,9,10\}P={prime numbers}P=\{\text{prime numbers}\}E={even numbers}E=\{\text{even numbers}\}F={factors of 36}F=\{\text{factors of }36\}

70 children were asked which flavours of ice cream they like from chocolate (C), vanilla (V) and strawberry (S).
5 children like chocolate and vanilla and strawberry.
15 like strawberry only.
12 like chocolate only.
8 like none of the flavours.
6 like strawberry and vanilla.
11 like chocolate and vanilla.
21 like strawberry.
35 like vanilla.

Find:

n(C)\mathrm n(C)

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