一條中學數
回答 (3)
2007-10-10 4:56 am
✔ 最佳答案
假設一份為 2a, 另一份即為 3a.=> 2a + 3a = 180
=> 5a = 180
=> 5a / 5 = 180 / 5
=> a = 36
=> 2a = 72
=> 3a = 108
各份分別是 72 及 108.
2007-10-10 4:54 am
180 X 2/5, 180 X 3/5
=72, 108
=72, 108
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071009000051KK03694