Lucy is three times as old as Alex. Lucy is 7 years older than Megan. The sum of their ages is 126.
Find the ratio of Alex's age to Lucy's age to Megan's age.
Practise Oxford AQA IGCSE Maths Forming and Solving Equations with exam-style questions for Core and Extended tier. 3 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.