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一种商品的价格先提价 20%,后降价 20%,现价与原价相同

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答案:

错误

本题解析:

解:(1+20%)×(1﹣20%)

=120%×80%,

=96%.

即现价是原价的 96%.

更新时间:2022-04-06 15:01

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