开甲管15小时可注满水池开乙管30小时可注满水池,开丙管20小时可将一池水放完,现3管同开几时将空水池注满?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 20:47:49
![开甲管15小时可注满水池开乙管30小时可注满水池,开丙管20小时可将一池水放完,现3管同开几时将空水池注满?](/uploads/image/z/8834035-67-5.jpg?t=%E5%BC%80%E7%94%B2%E7%AE%A115%E5%B0%8F%E6%97%B6%E5%8F%AF%E6%B3%A8%E6%BB%A1%E6%B0%B4%E6%B1%A0%E5%BC%80%E4%B9%99%E7%AE%A130%E5%B0%8F%E6%97%B6%E5%8F%AF%E6%B3%A8%E6%BB%A1%E6%B0%B4%E6%B1%A0%2C%E5%BC%80%E4%B8%99%E7%AE%A120%E5%B0%8F%E6%97%B6%E5%8F%AF%E5%B0%86%E4%B8%80%E6%B1%A0%E6%B0%B4%E6%94%BE%E5%AE%8C%2C%E7%8E%B03%E7%AE%A1%E5%90%8C%E5%BC%80%E5%87%A0%E6%97%B6%E5%B0%86%E7%A9%BA%E6%B0%B4%E6%B1%A0%E6%B3%A8%E6%BB%A1%3F)
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