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Let the quantity demanded in units of a particular commodity be represented as Qd =...

Economics
JAMB 2019

Let the quantity demanded in units of a particular commodity be represented as Qd = 80 - 2P, find the quantity demanded when P = ₦3.

  • A. 70
  • B. 47
  • C. 74
  • D. 40
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Correct Answer: Option C
Explanation

Qd = 80 - 2P
When P = 3
Qd = 80 - 2(3)
Qd = 80 - 6
Qd = 74

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