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The total revenue that firm P receives from the sale of a particular item is determined by multiplying the number of the items it sells by the price of the item. If the price of the item is to be decreased by 20 percent, by what percent must the number of the items sold increase to keep the total revenue unchanged?
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· 相关考点
2.4.3 百分比增减关系的描述
2.4.3 百分比增减关系的描述
以上解析由 考满分老师提供。
