Answer:
The price elasticity of demand is 1.25
Explanation:
The price Elasticity of Demand (PED) ia used to show the responsiveness of the demand of a good or service to a change in price. The PED can be either elastic (when the % change in demand is more than % change in price), or inelastic (when the % change in demand is less than the % change in price).
mathematically, it is represented as;
PED = (% change in demand) ÷ (% change in price)
Let us calculate the percentage changes.
% change in demand = (change in demand)/original demand × 100
= (160 - 80)/160 × 100 = 80/160 ×100 = 50%
% change in price = (change in price)/original price × 100
= (2.80 - 2.0)/2.0 × 100 = 0.8/2.0 × 100 = 40%
∴ PED = 50 ÷ 40 = 1.25 (elastic)