Sweets are sold in small packs and in big packs. There is a total of 175 sweets in 4 small packs and 3 big packs. There is a total of 154 sweets in 5 small packs and 2 big packs. Work out the number of sweets in each small pack and in each big pack.
217 exam-style questions on AQA GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.