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What is the elasticity of demand for commodity X, if at a price of N25…

What is the elasticity of demand for commodity X, if at a price of N25 the quantity demanded is 80 and when the price is reduced to N20 the quantity demanded is 100?
  • A.
    1.25
  • B.
    1.45
  • C.
    0.25
  • D.
    0.15
Correct Answer: Option A
Explanation