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The price of a pack of potato chips is increased by 20%.Simon decides to cut his monthly consumption by 20%.If there is a decrease of $4.8 in Simon's monthly expenditure o buying potato chips ,find his original monthly expenditure on buying potato chips.
人气:379 ℃ 时间:2020-01-27 20:49:08
解答
薯片价格涨了两成每包
西门欲每月少吃两成
故每月可减少四美元八美分的开支
问西门以前每月要消耗多少钱的薯片?
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