Math Problem Statement
Suppose Sarah initially sells her cupcakes for R2 each and observes that she sells 200 cupcakes per day. After increasing the price to R2.50, she notices a decrease in sales to 150 cupcakes per day. Calculate the point elasticity of demand for Sarah's cupcakes. (3 Marks)
Solution
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Math Problem Analysis
Mathematical Concepts
Economics
Elasticity of Demand
Percentage Change
Formulas
Elasticity of Demand = (% Change in Quantity Demanded) / (% Change in Price)
% Change in Quantity Demanded = (New Quantity - Old Quantity) / Old Quantity × 100
% Change in Price = (New Price - Old Price) / Old Price × 100
Theorems
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Suitable Grade Level
Grades 10-12 (Economics/Math level)
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