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The demand for beans in bags is given by the function Q - 36 +...

Economics
WAEC 2007

The demand for beans in bags is given by the function Q - 36 + 0.4P = 0.

Where P is price in naira and Q is quantity.

Find Q when P = 20 naira.

  • A. 12 bags
  • B. 24 bags
  • C. 28 bags
  • D. 30 bags
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Correct Answer: Option C
Explanation

Q - 36 + 0.4P = 0

Q = 36 - 0.4(20)

36 - 8 =  28

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