If a shopkeeper sells an article for $90,the profit per cent is 20% What will be the selling price of the article if the shopkeeper reduces the profit per cent to 16%?
詳盡列式 and 中文解釋
收錄日期: 2021-04-16 13:46:34
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https://hk.answers.yahoo.com/question/index?qid=20111201000051KK00668