In a sports club, the ratio of adults to children is 5:45:45:4. 20% of the children are beginners.
What fraction of all the people in the sports club are children who are beginners?
Practise OCR GCSE Maths Writing a Ratio as a Fraction or Linear Function with exam-style questions for Foundation and Higher tier. 60 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.