做对了几道题
- 时间:2020-04-02 21:17:33
- 分类:数学世界
- 阅读:109 次
某校的数学奥林匹克竞赛题共有10道。每个参加者答对一题加得5分,答错一题倒扣3分。获得总分34分的同学做对了几道题?得总分10分的呢?(少做一题按做错一题计算,一样倒扣3分)
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