某学校举办知识竞赛,共设50道选择题,评分标准是:答对1题得3分,答错1题扣1分,不答的题得0分。若王同学 最终得95分,则他答错的选择题最多有A.12...

作者: tihaiku 人气: - 评论: 0
问题 某学校举办知识竞赛,共设50道选择题,评分标准是:答对1题得3分,答错1题扣1分,不答的题得0分。若王同学 最终得95分,则他答错的选择题最多有
选项 A.12道 B.13道 C.14道 D.15道
答案 B
解析 假设50题都答对,应得150分,现只得95分,少得55分,每答错一题少得4分,不答少得3分,55÷4=13…… 3,余数3正好有一题不答少得三分,所以最多13道答错

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