When a fall in price of a commodity reduces total expenditure and a rise in price increases it, price elasticity of demand will be :

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Q: 12 (CAPF/2014)
When a fall in price of a commodity reduces total expenditure and a rise in price increases it, price elasticity of demand will be :
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question_subject: 

Economics

question_exam: 

CAPF

stats: 

0,31,65,36,31,21,8

keywords: 

{'price elasticity': [0, 0, 0, 3], 'demand': [0, 0, 0, 3], 'commodity': [0, 0, 0, 1], 'total expenditure': [0, 0, 0, 6], 'infinity': [0, 0, 1, 7], 'price': [0, 3, 1, 12], 'rise': [3, 1, 0, 4]}