A card is chosen from cards numbered 1 to 20. Find the probability that its number is a multiple of 3 or a multiple of 5.
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Markscheme
2.3 Probability Questions
36 exam-style questions on WJEC A Level Maths 2.3 Probability, covering 2.3.1 Probability and 2.3.2 Probability. Each one has a worked solution and a mark scheme showing where the marks go.