Elasticity: three questions to try now
Real past-paper questions, the answer key from the mark scheme, and the explanation that goes with it. No account needed to answer them.
Question 1
Which one of the following values shows perfect price inelasticity of supply?
Answer: D.
Question 2
Which one of the following values shows perfectly price elastic demand?
Answer: D.
Question 3
Which one of the following best describes an income elasticity of demand (YED) of 2.6?
Answer: C.
What this practice covers
These questions are drawn from past Edexcel IGCSE papers. 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.
Keep going multiple-choice questions →
What examiners see students get wrong here
These are the errors that cost marks on elasticity, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Comparing elasticity to zero instead of to 1.
- Saying "demand is elastic" without giving a value or a reason.
- Forgetting the minus sign on PED, or worrying about it too much. Say you are using the value ignoring the sign.
- Using absolute changes instead of percentage changes in the formula.
- Forgetting time, which is the strongest determinant of both PED and PES.
- Getting the revenue rule backwards. Inelastic → raise price to raise revenue.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Elasticity revision notes.