In a bag there are blue sweets, red sweets and yellow sweets.
The percentage of sweets in the bag that are yellow is 18211%\displaystyle 18\frac{2}{11}\%18112%.
The number of blue sweets is four times the number of yellow sweets.
Find the ratio of the number of red sweets to the number of yellow sweets.
249 exam-style questions on CCEA GCSE Maths Writing and Simplifying Ratio. Each one has a worked solution and a mark scheme showing where the marks go.