There are 4 red counters and x x\,x blue counters in a bag.
2 counters are removed from the bag at random.
The probability that both the counters taken are blue is 13\displaystyle \frac{1}{3}31
Work out the value of xxx.
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Markscheme
Probability Equation Questions Questions
7 exam-style questions on Edexcel IGCSE Maths Probability Equation Questions. Each one has a worked solution and a mark scheme showing where the marks go.