David buys 3 pens and 5 pencils from the stationery shop. The total cost is £1.15.
James buys 4 pens for £kkk.
Work out, in terms of kkk, how much it would cost to buy 1 pen and 2 pencils.
218 exam-style questions on AQA GCSE Maths Calculation Problems. Each one has a worked solution and a mark scheme showing where the marks go.