题目内容
(请给出正确答案)
[单选题]
已知一杯茶水有若干克,第一次加入一定量的水后,茶水的浓度为6%,第二次又加入同样多的水后,茶水的浓度为4%,求第三次加入同样多的水后茶水的浓度为多少?()
A.1%
B.2%
C.3%
D.3.5%
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A.1%
B.2%
C.3%
D.3.5%
A.1%
B.2%
C.3%
D.3.5%
A.1.6%
B.1.5%
C.1.2%
D.1%
A.1.6%
B.1.5%
C.1.2%
D.1%
A.1%
B.1.2%
C.1.5%
D.1.67%
A.1%
B.1.2%
C.1.5%
D.1.67%
A.3%
B.2.5%
C.2%
D.1.8%
A.0.03
B.0.025
C.0.02
D.0.018
A.8%
B.9%
C.10%
D.11%
A.8%
B.9%
C.10%
D.11%