2.ab(c-d)=x [d]
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更新1:
新題目: 3.A boy uses p% of his money in TV games and Q% of the remaining part in lunch. What is the percentage of his money being used? 之前問過,不過佢答錯左- -"
use of formulae(4)...唔識做
回答 (1)
2008-08-17 3:41 am
✔ 最佳答案
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080816000051KK01771