Mathematics (AS & A Level) · May / June 2026 · Paper 55 · Question 3
9709
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For her morning break, Jules has a drink. She has tea, juice or water, with probabilities 0.2, 0.35 and 0.45 respectively. When she has tea, the probability that she has a cake is 0.25. When she has juice, the probability that she has a cake is 0.4. When she has water, the probability that she has a cake is x. On a randomly chosen day, the probability that Jules has a cake is 0.505.
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3(a)[2]
3(b)[3]
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