There is a direct proportion between two values when one is a multiple of the other. For example, \(1\text{cm} = 10\text{mm}.\) To convert \(\text{cm}\) to \(\text{mm}\), the multiplier is always 10.

This is a worksheet of Inverse Proportion questions aimed at KS3 students (could also be used for KS4). It concerns questions without using the constant of proportionality, examples about people ...