What this practice covers
These questions are drawn from past Cambridge IGCSE papers and filtered to demand. 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 demand, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Saying a price change "increases demand", it changes quantity demanded.
- Shifting the curve when the good's own price changed.
- Confusing substitutes with complements.
- Confusing an inferior good with a cheap or poor-quality good. An inferior good is defined by what happens when income rises.
- Forgetting to label the axes as price and quantity.
- Not labelling the curves D1 and D2 when showing a shift.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Demand revision notes.