There are only green pens, black pens and red pens in a box.
There are four times as many green pens as black pens.
There are twice as many red pens as green pens.
Write down the ratio of green pens to black pens to red pens.
Practise Oxford AQA IGCSE Maths Writing and Simplifying Ratio with exam-style questions for Core and Extended tier. 15 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.