In a collection there are gold coins, silver coins and bronze coins.
The number of gold coins is five times the number of bronze coins.
The number of silver coins is 1.5 times the number of bronze coins.
Find the percentage of coins in the collection that are bronze.
64 exam-style questions on Edexcel GCSE Maths Writing and Simplifying Ratio. Each one has a worked solution and a mark scheme showing where the marks go.