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数学
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一条路已修了全长的
3
5
,还剩120千米没修,这条路全长有多少千米?
人气:340 ℃ 时间:2019-11-26 00:20:18
解答
120÷(1-
3
5
)
=120
÷
2
5
=300(千米)
答:这条路全长有300千米.
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