WAEC Economics 2012 Question 13

Question 13

Theory of Demand

Given the demand function Qd = 20 − (1/2)P. What is Qd when P is $12?

  1. A.6 units
  2. B.10 units
  3. C.12 units
  4. D.14 units
Show the answer and explanation

Answer: D (14 units)

Explanation

Qd = 20 − ½(12) = 20 − 6 = 14 units.