Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Chapter
Sets
20 practice questions
Practice questions
11–20 of 20
Question 11
4 marks · Normal
Answer and see the solution →In a survey, 35 students were asked if they play football (F) or tennis (T).
Results Category Number of students Play only football 15 Play only tennis 12 Play both sports 5 Play neither 3 (a)[1 mark]How many students play football?
(b)[1 mark]How many students play tennis?
(c)[1 mark]How many play exactly one sport?
(d)[1 mark]Verify that the total number of students is 35.
Question 12
3 marks · Normal
Answer and see the solution →The Venn diagram shows sets E and F in a universal set S.
Venn diagram for question 6. (a)[1 mark]What name is given to the overlapping part of E and F?
(b)[1 mark]Write the symbol or notation for the region that is inside E or inside F or both.
(c)[1 mark]Write in set notation the region outside both E and F.
Question 13
4 marks · Normal
Answer and see the solution →Let and .
(a)[2 marks]List all the elements in .
(b)[1 mark]List all the elements in .
(c)[1 mark]List all the elements in , if the universal set is .
Question 14
2 marks · Normal
Answer and see the solution →State whether the following statement is true or false: If is an element of both sets and , then .
Question 15
4 marks · Normal
Answer and see the solution →Let the universal set . Set and set .
(a)[1 mark]List the elements of .
(b)[1 mark]List the elements of .
(c)[1 mark]Write down , the complement of set in .
(d)[1 mark]Describe, using set notation, the set of elements in that belong to but not to .
Question 16
3 marks · Normal
Answer and see the solution →Write down the meaning of these three symbols as used in set notation: (a) (b) (c) (the prime symbol as in )
Question 17
4 marks · Normal
Answer and see the solution →The Venn diagram below represents sets and in the universal set .
Venn diagram showing sets X and Y within U. Each region labelled with numbers. (a)[1 mark]List the elements of set .
(b)[1 mark]List the elements of set .
(c)[1 mark]Write down the elements of .
(d)[1 mark]List the elements in that are not in or .
Question 18
4 marks · Hard
Answer and see the solution →In a class of 30 students, the universal set U consists of all the students. Let set M be the students who play music (18 students), set S be the students who play sports (15 students), and 8 students play both music and sports.
(a)[1 mark]How many students play only music?
(b)[2 marks]How many students play neither music nor sports?
(c)[1 mark]Represent this information in a Venn diagram. Clearly label all sets and indicate the number of students in each region.
Question 19
2 marks · Hard
Answer and see the solution →Describe, using set notation, the difference between the sets and . Give an example with sets A = \{apple, banana\} and B = \{banana, cherry\}.
Question 20
3 marks · Hard
Answer and see the solution →Let the universal set . Let , .
(a)[1 mark]List the elements of P and Q.
(b)[1 mark]Find .
(c)[1 mark]How many elements are in ?