Exam-Style Question on Probability
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 42. This question is similar to one that appeared on an IB Standard paper in 2014. The use of a calculator is not allowed.
Piers wins one of the many prizes on offer in the school raffle but he does not yet know exactly what the prize is.
Find the probability that the prize Piers wins is not both something to eat and worth more than $10 as Piers does not like expensive food.
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