CBSE Guess > Papers > Important Questions > Class XII > 2010 > Economics > Economics By Sujjoy Basu
CBSE CLASS XII
Q. 22. How does the market demand curve derived from individual demand curves?
Q. 23. What is Giffen commodity?
Q. 24. Let two demand functions be
d₁(P)=40-P for P≤40 and d₁(P)=0 for P>40
d₂(P)=10-2P for P≤5 and d₂(P)=0 for P>5
Find out the market demand function.
Q. 25. Suppose there are three consumers in a particular market-X,Y,Z .Derive the market demand schedule.
| Price | Demand of X | Demand of Y | Demand of Z |
| 1 | 60 | 55 | 24 |
| 2 | 50 | 40 | 13 |
| 3 | 40 | 50 | 5 |
| 4 | 30 | 10 | 0 |
Q. 26. Define the price elasticity of demand.
Q. 27. Draw the i) perfectly elastic, ii) perfect inelastic and iii) unit elastic demand curves .
Q. 28. Explain total expenditure method of measuring price elasticity of demand with the help of table .
Q. 29. What is the difference between luxury and necessary commodities.
Q. 30. Explain with the help of a diagram, the geometric method of measuring price elasticity of demand.
Q. 31. What are the factors affecting elasticity of demand?
Q. 32. Total expenditure on a good increases with the fall in its price. State if the demand for the good is elastic or inelastic.
OR,
Total expenditure on a good increases with the increase in its price. State if the demand for the good is elastic or inelastic.
Q. 33. Math on Elasticity of demand. (Reference- Any Book)
Paper By Mr. Sujjoy Basu
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Ph No. : 9233368802
