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数学
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工程队修一条路,已经修好全长的
2
3
,距离中点12米.这条路全长多少米?
人气:467 ℃ 时间:2019-08-19 03:32:12
解答
12÷(
2
3
-
1
2
)
=12
÷
1
6
=72(米)
答:这条路全长72米.
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