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प्रश्न
Distinguish between extension and contraction of demand.
उत्तर
If the changes in the quantity demanded are due to the change in price alone then it is called extension and contraction of demand. Buying more at a lower price is an extension of demand and less at a higher price is the contraction of demand.
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| Period | Price (₹ per kg) | Amount Bought (kg) |
| Jan. 2000 | ₹ 15 | 4 |
| Feb. 2000 | ₹ 16 | 5 |
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