姐姐錢數的5倍等於妹妹錢數的7倍,當姊姊給妹妹20元後,姊妹兩人錢數得比為13:11,求姊妹各有多少元?(此題為計算題)
需要詳細計算過程,謝謝你!
數學題目怎麼解(需要詳細計算過程)?
2020-04-26 8:01 pm
回答 (1)
2020-05-09 3:48 pm
elder sister had $280, younger sister had $200
收錄日期: 2021-04-24 08:22:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200426120130AAJP0jI