WAEC Economics 2016 Question 9

Question 9

Theory of Demand

If the quantity of men's hat demanded per week is represented by the function Qd = 20 − (1/3)P, where P is price, how many hats are demanded when the price is $9.00?

  1. A.11
  2. B.17
  3. C.23
  4. D.47
Show the answer and explanation

Answer: B (17)

Explanation

Qd = 20 − 9/3 = 20 − 3 = 17.