一项工程,甲乙两个人需做8天,乙丙需做9天,甲丙需做18天,问,丙单独做需几天?我是这样解得:1除以8=8分之1 1除以9=9分之1 8分之1-9分之1=72分之118分之1-72分之1=72分之3 72分之3除以2=144分之3 1除以1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 08:19:29
![一项工程,甲乙两个人需做8天,乙丙需做9天,甲丙需做18天,问,丙单独做需几天?我是这样解得:1除以8=8分之1 1除以9=9分之1 8分之1-9分之1=72分之118分之1-72分之1=72分之3 72分之3除以2=144分之3 1除以1](/uploads/image/z/1607233-49-3.jpg?t=%E4%B8%80%E9%A1%B9%E5%B7%A5%E7%A8%8B%2C%E7%94%B2%E4%B9%99%E4%B8%A4%E4%B8%AA%E4%BA%BA%E9%9C%80%E5%81%9A8%E5%A4%A9%2C%E4%B9%99%E4%B8%99%E9%9C%80%E5%81%9A9%E5%A4%A9%2C%E7%94%B2%E4%B8%99%E9%9C%80%E5%81%9A18%E5%A4%A9%2C%E9%97%AE%2C%E4%B8%99%E5%8D%95%E7%8B%AC%E5%81%9A%E9%9C%80%E5%87%A0%E5%A4%A9%3F%E6%88%91%E6%98%AF%E8%BF%99%E6%A0%B7%E8%A7%A3%E5%BE%97%EF%BC%9A1%E9%99%A4%E4%BB%A58%3D8%E5%88%86%E4%B9%8B1+1%E9%99%A4%E4%BB%A59%3D9%E5%88%86%E4%B9%8B1+8%E5%88%86%E4%B9%8B1-9%E5%88%86%E4%B9%8B1%3D72%E5%88%86%E4%B9%8B118%E5%88%86%E4%B9%8B1-72%E5%88%86%E4%B9%8B1%3D72%E5%88%86%E4%B9%8B3+72%E5%88%86%E4%B9%8B3%E9%99%A4%E4%BB%A52%3D144%E5%88%86%E4%B9%8B3+1%E9%99%A4%E4%BB%A51)
xV[rF݊>qa$bBLr%ll!< 8c}fP@&\-NöKZYznSRn LaZP뎻м`k_x~/g-3l^^ReP$*ImKL"2JӶ#1O/Zl |S`E>XH$#%rlZhBn~Xr*o=yA嘾:̪Uי)]= ހeg~}Îj~^