Advertisements
Advertisements
प्रश्न
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.
उत्तर
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
संबंधित प्रश्न
Explain the effect of the following on the price elasticity of demand of a commodity:
(i) Number of substitutes
(ii) Nature of the commodity
Match the following :
Group 'A' | Group 'B' |
(a) Demand and price | (1) wages |
(b) Perfectly elastic supply | (2) Vertical supply curve |
(c) Land | (3) Transfer income |
(d) Unemployment allowance | (4) Horizontal supply curve |
(e) Reserve Bank of India | (5) Inverse relation |
(6) Rent | |
(7) 1935 | |
(8) Direct relation |
State whether the following statement is true or false :
Concept of ‘elasticity of demand’ is useful for the finance minister.
Define or explain the following concepts (Any THREE):
Stock
Choose the correct answer :
Demand of labour is _______
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.
The government wants to reduce the consumption of good by 10%. The price elasticity of demand for elasticity is -0.4. The government should raise the price of elasticity by ______.
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): The demand for soap, salt, matches etc. is highly elastic.
Reason (R): The demand for soap, salt, matches etc. is highly inelastic because the consumer spends a very small amount of expenditure in relation to his/her income.
Explain briefly the factors on which elasticity of demand depends.
State 3 factors which affect price elasticity of demand.
Discuss any three/ four factors determining price elasticity of demand.