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price of a commodity falls from …

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price of a commodity falls from rs 4 to rs 3 per unit. as a result total expenditure on it rises from 200 to 300. find price elasticity of demand
  • 3 answers

Sia ? 6 years, 1 month ago

Price elasticity of demand is an economic measure of the change in the quantity demanded or purchased of a product in relation to its price change.

Price
(Rs.)
Total Expenditure (Rs.) Quantity
Demanded
(units)
4 200 {tex}\frac{200}{4}=50{/tex}
3 300 {tex}\frac{300}{3}=100{/tex}
Change in Price Percentage Change in Price Change in Demand Percentage change in Demand
Rs.4 to Rs.3 {tex}{\frac{3-4}{4} \times 100}{/tex}
 = -25 per cent
50 units to 100 units {tex}\frac{100-50}{50} \times 100{/tex}
= 100 percent

Price elasticity of demand (Ed)
{tex}=\frac{(-) \% \text { Change in quantity demanded }}{\% \text { Change in price }}{/tex},
{tex}=(-) \frac{100}{-25}=4{/tex},
Elasticity of demand is greater than unity.

Anshal Krishna 6 years, 1 month ago

4 hoga

Mukul Mittal 6 years, 1 month ago

8 ans. H
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