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数学
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有一根绳子和一根竹竿,把绳子对折后比竹竿长2米;把绳子4折后比竹竿短2米.竹竿和绳子各长几米?
人气:409 ℃ 时间:2019-10-14 02:11:07
解答
绳子:(2+2)÷(
1
2
-
1
4
),
=4÷
1
4
,
=16(米);
竹竿:16×
1
2
-2,
=8-2,
=6(米);
答:绳子长16米,竹竿长6米.
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