# Answer to Question #71125 in Microeconomics for sh

Question #71125

In a particular town there are 100 cars and 50 motorcycles. Each car owner has a demand curve for petrol given by: Qdc = 20 – 5p for p ≤ 4 and Qdc = 0 for p > 4. Each motorcycle owner has the following demand function for petrol: Qdm = 15 – 3p for p ≤ 5 and Qdm = 0 for p > 5. Prices are expressed as SR per gallon, and quantities as gallons per week. b) Sketch the market demand curve for petrol (that is, the combined demand from car and motorcycle owners)

c) Write an algebraic expression for the market demand function.

c) Write an algebraic expression for the market demand function.

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