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a question
有个问题很困惑,因为我算出来的答案是75%ㄝ,机经中的正确答案是65﹪
A mixture is composed of 5 gallons of water and 5 gallons of antifreezer.Now use 3 gallons of the mixture and add 3 gallons of antifreezer to the mixture. What is the percentage of antifreezer in the mixture in the mixture now？ |
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