Foundation June 2023 Paper 1R Q18

EdexcelFoundationCurrent spec3 marksSets

18 Here is a Venn diagram.

Venn diagram with universal set E and three circles A, B and C in a row; A overlaps B and B overlaps C; A only contains 7, 11, 13; A and B contains 5; B only contains 15; B and C contains 10; C only contains 6, 8, 12, 14; 9 is outside all circles

(a) Write down the numbers that are in the set

(i) \(A\) (1)

(ii) \(B \cup C\) (1)

Dominic writes down \(9 \notin C\)

(b) Explain why Dominic is correct. (1)

Scheme	Marks
(i) 7, 11, 13, 5 Answer: 5, 7, 11, 13	B1
(ii) 5, 15, 10, 6, 8, 12, 14 Answer: 5, 6, 8, 10, 12, 14, 15	B1
	(2)

Mark scheme (b)

Scheme	Marks
Correct reason	B1
	(1)
	(3 marks)

Notes

B1: eg 9 is not a member of \(C\)
or 9 is not in \(C\)
or \(C\) only contains 6, 8, 10, 12, 14
or 9 is outside of \(C\)
there must be no contradictory or incorrect statements