In a bag of marbles there are
8 red marbles 12 blue marbles 5 green marbles
Sarah takes one of the marbles at random.
Write down the probability that Sarah takes a blue marble.
Practise Eduqas GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Eduqas GCSE Maths (C300QS) specification and written in Component 1 and Component 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.