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教室墙面刮瓷,甲队单独干 10 天完成,乙队单独干 15 天完成。 两队合干几天可以完成? PowerPoint PPT Presentation


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教室墙面刮瓷,甲队单独干 10 天完成,乙队单独干 15 天完成。 两队合干几天可以完成?. 1 、学校要铺地板砖,甲组单独铺要 6 天完成,乙组单独铺要 9 天完成, 两组合作,几天可以完成任务?. 2 、一批涂料,单独用来刷课桌 可以刷 200 张,单独用来刷椅 子可以刷 300 张。这批涂料可 以刷多少套课桌椅?.

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教室墙面刮瓷,甲队单独干 10 天完成,乙队单独干 15 天完成。 两队合干几天可以完成?

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10 15

教室墙面刮瓷,甲队单独干10

天完成,乙队单独干15天完成。

两队合干几天可以完成?


10 15

1、学校要铺地板砖,甲组单独铺要

6天完成,乙组单独铺要9天完成,

两组合作,几天可以完成任务?


10 15

2、一批涂料,单独用来刷课桌

可以刷200张,单独用来刷椅

子可以刷300张。这批涂料可

以刷多少套课桌椅?


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