What this practice covers
These questions are drawn from past Cambridge IGCSE papers and filtered to price determination. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising Paper 1 MCQs →
What examiners see students get wrong here
These are the errors that cost marks on price determination, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Confusing excess demand with excess supply. Remember: price too low → shortage; price too high → surplus.
- Shifting a curve to correct a shortage. Shortages are corrected by the price changing, which causes movements along the curves.
- Saying an increase in supply raises the price. It lowers it.
- Not labelling the old and new equilibrium price and quantity on the diagram.
- Describing the outcome without explaining the adjustment process.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Price Determination revision notes.