【GMAT考满分数学PS题库】How much water should be added into the 20m^3 alco_真题_答案_解析 GMAT考满分官网

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题目内容

How much water should be added into the 20m^3 alcohol solution whose concentration is 80% to get the alcohol solution whose concentration is 50%?

A4 $$m^3$$
B6 $$m^3$$
C8 $$m^3$$
D10 $$m^3$$
E12 $$m^3$$

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正确答案: E

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