甲容器中有190克浓度为3%的盐水,乙容器中有若干克浓度为9%的盐水,从乙取出210克盐水倒入甲。甲容器中盐水的浓度是多少?A.5.45% B.6.15...

作者: tihaiku 人气: - 评论: 0
问题 甲容器中有190克浓度为3%的盐水,乙容器中有若干克浓度为9%的盐水,从乙取出210克盐水倒入甲。甲容器中盐水的浓度是多少?
选项 A.5.45% B.6.15% C.7.35% D.5.95%
答案 B
解析 甲容器中盐水的浓度为(1903%+2109%)(190+210)=6.15%。

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