从装有120克浓度为80%的盐水的烧杯中倒出60克盐水后,再加入60克清水并使之混合均匀。接着重复以上步骤2次,问最终烧杯中的盐水的浓度为多少?()A.1...

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问题 从装有120克浓度为80%的盐水的烧杯中倒出60克盐水后,再加入60克清水并使之混合均匀。接着重复以上步骤2次,问最终烧杯中的盐水的浓度为多少?()
选项 A.10% B.12.5% C.15% D.17.5%
答案 A
解析

相关内容:120克,浓度,盐水,杯中,清水,混合,步骤,烧杯,A.1...

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