[請益]數學題目解題....
如題
甲乙兩地 哥哥每時行9里 弟弟每時行7里 一起出發過了一時後
哥哥忘記帶東西而折返回家 弟弟則繼續前進 最後兩人同時抵達
問 甲乙兩地距離多長?
感謝解惑!!!!!!!
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推
08/14 11:07, , 1F
08/14 11:07, 1F
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08/14 11:12, , 2F
08/14 11:12, 2F
推
08/14 11:15, , 3F
08/14 11:15, 3F
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08/14 11:16, , 4F
08/14 11:16, 4F
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08/14 11:16, , 5F
08/14 11:16, 5F
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08/14 12:33, , 6F
08/14 12:33, 6F
推
08/14 12:36, , 7F
08/14 12:36, 7F
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08/14 12:37, , 8F
08/14 12:37, 8F
→
08/14 12:37, , 9F
08/14 12:37, 9F
推
08/14 12:39, , 10F
08/14 12:39, 10F
推
08/14 12:49, , 11F
08/14 12:49, 11F
→
08/14 17:49, , 12F
08/14 17:49, 12F
推
08/14 21:19, , 13F
08/14 21:19, 13F
推
08/14 21:41, , 14F
08/14 21:41, 14F
推
08/14 21:52, , 15F
08/14 21:52, 15F
→
08/14 21:52, , 16F
08/14 21:52, 16F
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08/21 14:30, , 17F
08/21 14:30, 17F
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08/21 14:31, , 18F
08/21 14:31, 18F
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