A box contains only blue pens and black pens. 411\displaystyle \frac{4}{11}114 of the pens are blue.
Write down the ratio of blue pens to black pens?
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Writing a Ratio as a Fraction or Linear Function Questions
60 exam-style questions on Edexcel GCSE Maths Writing a Ratio as a Fraction or Linear Function. Each one has a worked solution and a mark scheme showing where the marks go.