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Edexcel IGCSE Math B 2.C union and intersection

Practise union-and-intersection questions by reading symbols such as ∪, ∩ and prime notation, then identifying the required set region.

Syllabus
First assessment 2018
Course
Math B 4MB1

Exam points

  • Interpret union and intersection notation such as E ∪ F or P ∩ F′ correctly.
  • Identify the elements or Venn region described by combined set notation.

2.C Union and intersection question 1

[Maximum number: 2]
Figure for Question 2.C Union and intersection 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.

Question (a)

(a)

Write down all the elements of:

[ 2 ]

Question (i)

(i)

P∩F′P\cap F'

[ 1 ]

Question (ii)

(ii)

E∪FE\cup F

[ 1 ]
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