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Question
Average income increases from INR 20,000 p.m. to INR 22,000 p.m. Quantity demanded per month increases from 5000 to 6000 units. Which of the following is correct?
Options:
A .  Demand is price inelastic
B .  The good is inferior
C .  Income elasticity is -2
D .  The product has a positive income elasticity of demand
Answer: Option D
:
D
The percentage change in demand is +20%; the percentage change in income is +10%. This means the product is normal because demand rises with more income and has an income elasticity of +2.

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