There are 20 chocolates in a box. 9 of the chocolates are milk chocolate. 5 of the chocolates are dark chocolate. The rest of the chocolates are white chocolate. One of the chocolates is chosen at random.
Find the probability that the chocolate is white chocolate.
236 exam-style questions on OCR GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.