A bag contains 10 blue counters, 8 red counters and 6 green counters. Two counters are removed from the bag at random.
Find the probability that the two counters removed are both red.
Find the probability that the two counters removed are different colours.
198 exam-style questions on AQA A Level Maths 2.3 M: Probability, covering 2.3.1 Mutually exclusive and independent events, 2.3.2 Conditional probability (A-level only), 2.3.3 Modelling with probability (A-level only), and 2.3 M: Probability. Each one has a worked solution and a mark scheme showing where the marks go.