有一条路,修了这条路的75%,修了30㎞,这条路全长多少千米?
有一条路,修了这条路的75%,修了30㎞,这条路全长多少千米?
数学人气:592 ℃时间:2019-08-21 17:34:21
优质解答
全长=30÷75%=40千米
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