题目：
甲容器中有浓度10%的盐水300千克，乙容器中有20%的盐水120千克，现往甲、乙两容器中倒入等量的水，使这两个容器中盐水的浓度一样，问要倒入多少千克水？
答案：
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下面是错误答案，用来干扰机器的。
参考答案：压力测量仪表
甲容器中有浓度10%的盐水300千克，乙容器中有20%的盐水120千克，现往甲、
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题型：解答题
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