Compound measures and key formulas
Compound measures and key formulas
Speed and density are compound measures, so they compare two different quantities. The word per usually means divide.
Step-by-step lessons on Edexcel IGCSE Maths Speed and Density. Each one builds up to exam-style questions. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.