Alvin and Simon shared £540 in the ratio 4 : 5
Alvin gave half of his share to Theo. Simon gave a tenth of his share to Theo.
Verify that Theo received 518\displaystyle \frac{5}{18}185 of the £540.
222 exam-style questions on Eduqas GCSE Maths Ratio. Each one has a worked solution and a mark scheme showing where the marks go.