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Mathematics 14 Online
OpenStudy (anonymous):

A druggist needs 25 liters of a solution that is 16 % iodine. She has one solution that is 12 % iodine and another solution that is 37 % iodine. How many liters of each solution should the druggist use?

OpenStudy (anonymous):

druggist needs 4liters of iodine in 25 liters of iodine. x*12/100 +y *37/100=4 and x+y=25. x=21liters y=4liters

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