XYZ XYZ\,XYZ is a straight piece of wire.
The length of YZ YZ\,YZ is twice the length of XYXYXY.
XZ=54XZ = 54XZ=54 centimetres.
Work out the length of YZYZYZ.
93 exam-style questions on OCR GCSE Maths Ratio. Each one has a worked solution and a mark scheme showing where the marks go.