某修路队修一段路,第一天修了全长的25%,第二天修了全长的40%,还剩140米没有修.这条路全长多少米?
某修路队修一段路,第一天修了全长的25%,第二天修了全长的40%,还剩140米没有修.这条路全长多少米?
数学人气:185 ℃时间:2019-09-24 05:05:15
优质解答
140/(1-0.25-0.4)=400
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