Lucy is three times as old as Alex. Lucy is 7 years older than Megan. The sum of their ages is 126.
Verify that the ratio of Alex's age to Lucy's age to Megan's age is 19:57:5019:57:5019:57:50.
139 exam-style questions on OCR GCSE Maths Forming and Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.