There are 53 counters in a bag.
15 of the counters are red. The rest of the counters are blue.
One of the counters is taken at random.
Find the probability that the counter is blue.
Practise CIE IGCSE Maths Probability with exam-style questions for Core and Extended tier. 28 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) 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.