O-LevelMathematicsNumber4024/12 · May/June 2023 · Q193 Marks
One morning 50 people visit a library. • 35 of them borrow a book. • 12 of them use a computer. • 8 of them do not borrow a book and do not use a computer.
- (a)In the Venn diagram, shade the region represented by (A ∩ B') ∪ (B ∩ C'). [Figure X.X][1]
- (b)Using a Venn diagram, or otherwise, find the number of people who use a computer but do not borrow a book.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2023). The mark or mark type is shown in brackets.
- 19(a) Correct shading
- 19(b) 7
- 19(b) M1 for B ∩ C = 5 soi or for 35 - x + 12 - x + 8 + x = 50 oe
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