Advertisements
Advertisements
Question
When price of a commodity falls by Rs 1 per unit, its quantity demanded rises by 3 units. Its price elasticity of demand is (−) 2. Calculate its quantity demanded if the price before the change was Rs 10 per unit.
Solution
Initial Price (P)=Rs 10
Initial Qunatity (q)=x
`ΔP=-1`
`Δq=3`
`E_d=(-)2`
`E_d= (Δq)/(Δp)xxp/q`
`Or,-2=3/-1xx10/x`
Or,x=15 `"units(Initial Quantity Demanded)"`
APPEARS IN
RELATED QUESTIONS
Explain any two factors that affect the price elasticity of demand. Give suitable examples.
Explain the effect of the following on the price elasticity of demand of a commodity:
(i) Number of substitutes
(ii) Nature of the commodity
State whether the following statement is true or false :
Concept of ‘elasticity of demand’ is useful for the finance minister.
Choose the correct answer :
Perfectly elastic demand curve is _________.
Choose the correct answer :
Demand of electricity for domestic purpose is _________.
State whether the following statements are TRUE or FALSE :
The demand of foodgrains is inelastic.
Choose the correct answer :
The account in which the specific amount is deposited per month regularly is known as _________.
Match the following:
|
Group A
|
Group B
|
|
1. Cars and petrol
|
a. Elastic demand
|
|
2. Point method
|
b. Complementary
|
|
3. Necessary goods
|
c. Geometric method
|
|
|
d. Inelastic demand
|
The coefficient of price elasticity of demand for Good X is (−) 0.2. If there is a 5% increase in the price of the good, by what percentage will the quantity demanded for the good fall?
State whether demand will be Elastic or Inelastic. Give reasons for your answer.
The demand for salt by households.
What is the implication of a vertical demand curve?
The price of Y falls from ₹ 8 to ₹ 6. The quantity demanded increases from 100 units to 125 units. The price electricity of demand will be ______.
Assertion (A): Demand for a commodity with large number of substitutes with be less elastic.
Reason (R): With large number of substitutes, even a small rise in its price will induce the buyers to go for its substitutes.
The nature of a commodity determines its price elasticity of demand. Explain.
When will the demand curve be parallel to x-axis?
How does the nature of a commodity affect its price elasticity of demand?
How does the nature of a good affect its elasticity of demand?
