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.

MARY:Right. 200g of self-raising flour, 175g of butter, 2 eggs. 225g of Caster sugar, 40g of cocoa powder, one teaspoon of vanilla extract and the cream, 150ml. MARY:'If two quantities arein direct ...