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  Price (₦) Quantity Demanded 8 10 6 12 If we move from 8 to...

Economics
JAMB 2019

 

Price
(₦)
Quantity Demanded
8 10
6 12


If we move from 8 to 6, the elasticity of demand is_______

  • A. -1.25
  • B. 0.62
  • C. 0.8
  • D. 1
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Correct Answer: Option C
Explanation

The elasticity of demand is calculated as the percentage change in quantity divided by the percentage change in price

%Change in quantity = 12 - 10 = 2
Percentage change = \(\frac{2}{10}\) = 0.2

Change in price = 8 - 6 = 2
Percentage change = \(\frac{2}{8}\) = 0.25

Elasticity of demand = \(\frac{0.2}{0.25}\) = 0.8


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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free