1.

The demand for a good falls to 240 units in response to the rise in price by ₹.2. If the original demand was 300 units at the price of ₹.20, calculate the price elasticity of demand.

Answer»
 New Quantity(Q1) = 240 UnitsRise in Price(△P) = ₹ 2
Original Quantity(Q) = 300 UnitsOriginal Price = ₹ 20
Change in Quantity(△Q) = -60 unitsNew Price(P1) = ₹ 22
Elasticity of demand Ed = ?

Price elasticity of Demand Ed = \(\frac{\Delta Q}{\Delta P}\times\frac{P}{Q}\) \(=\frac{-60}{2}\times\frac{20}{300}\) = (-) 2

Ed = (-) 2 (Demand is highly elastic as Ed > 1)



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