5%的糖水80克与8%的糖水20克混在一起,倒掉其中10克,再加入10克水,现在糖水溶液浓度是多少?( ) A. 3.96% B. 4.96% C. 5...

作者: tihaiku 人气: - 评论: 0
问题 5%的糖水80克与8%的糖水20克混在一起,倒掉其中10克,再加入10克水,现在糖水溶液浓度是多少?( ) A. 3.96% B. 4.96% C. 5.04% D. 6.04%
选项
答案 C
解析 (80X5%+20X8%)X(100-10)/100= 5.04(克),5. 04/(20 + 80 -10 + 10) = 5. 04%。

相关内容:糖水,10克水,水溶液,浓度

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