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If two liters of a solution that is 15 percent salt will be added to 5 liters of
If two liters of a solution that is 15 percent salt will be added to 5 liters of
游客
2024-01-13
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问题
If two liters of a solution that is 15 percent salt will be added to 5 liters of a solution that is 8 percent salt, what percent salt will the resulting solution contain?
选项
A、10%
B、7%
C、20%
D、15%
E、12%
答案
A
解析
两种solution混合后,共含有盐:2×15%+5×8%=0.7,而混合后一共有solution 2+5=7 liters,所以混合后最终Solution中含有盐分为=0.7/7=10%,A为正确答案。
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