A charity tombola has a total of 500 tickets in the drum. Ahmed buys 25 of these tickets.
Calculate the probability that Ahmed does not win the tombola prize.
Practise OCR GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.