Objective
Select a proportion or rate method and explain assumptions.
Calculator: Non-calculator core; calculator optional only for checking where labelled.

Recall
Retrieve the key fact or method needed for rates pathway and repair.
Core practice
A car uses 18 litres over 240 km. Express fuel use in litres per 100 km.
Reasoning
A distance is fixed. If speed increases by 25%, what happens to journey time?
Exam-style
Solve an exam-style problem involving rates pathway and repair. Show working, include a check and interpret your answer.