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微观经济学问题supposethepriceoftwinkiesisreducedfrom$1.45to$1.25and,asaresult,thequantitydemandedincreasefrom2000to2200.usingthemidpointmethod,thepriceelasticityofdemandfortwinkiesinthegivingpricerangeisa.2.

题目详情
微观经济学问题
suppose the price of twinkies is reduced from $1.45 to $1.25 and,as a result,the quantity demanded increase from 2000 to 2200.using the midpoint method,the price elasticity of demand for twinkies in the giving price range is
a.2.00 b.1.55 c.1.00 d.64
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答案和解析
没有你给的答案,应该是0.725 公式应该是需求量变动的百分比除以价格变动的百分比