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how much pure alcohol should be added to 300 ml of 30 percent alcohol to raise the alcohol solution to 40 percent
Guest Feb 3, 2012
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how much pure alcohol should be added to 300 ml of 30 percent alcohol to raise the alcohol solution to 40 percent



[input](300+x)*0.4=300*0.3+x[/input]
admin  Feb 3, 2012

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