一项工程,甲、乙合作15天完成.现在有甲队先做4天后,乙队接着做6天,共完成这项工程的二十分之七,如果由甲、乙独做,完成这项工程各需多少天?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 10:09:40
![一项工程,甲、乙合作15天完成.现在有甲队先做4天后,乙队接着做6天,共完成这项工程的二十分之七,如果由甲、乙独做,完成这项工程各需多少天?](/uploads/image/z/453074-50-4.jpg?t=%E4%B8%80%E9%A1%B9%E5%B7%A5%E7%A8%8B%2C%E7%94%B2%E3%80%81%E4%B9%99%E5%90%88%E4%BD%9C15%E5%A4%A9%E5%AE%8C%E6%88%90.%E7%8E%B0%E5%9C%A8%E6%9C%89%E7%94%B2%E9%98%9F%E5%85%88%E5%81%9A4%E5%A4%A9%E5%90%8E%2C%E4%B9%99%E9%98%9F%E6%8E%A5%E7%9D%80%E5%81%9A6%E5%A4%A9%2C%E5%85%B1%E5%AE%8C%E6%88%90%E8%BF%99%E9%A1%B9%E5%B7%A5%E7%A8%8B%E7%9A%84%E4%BA%8C%E5%8D%81%E5%88%86%E4%B9%8B%E4%B8%83%2C%E5%A6%82%E6%9E%9C%E7%94%B1%E7%94%B2%E3%80%81%E4%B9%99%E7%8B%AC%E5%81%9A%2C%E5%AE%8C%E6%88%90%E8%BF%99%E9%A1%B9%E5%B7%A5%E7%A8%8B%E5%90%84%E9%9C%80%E5%A4%9A%E5%B0%91%E5%A4%A9%3F)
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