document.write( "Question 413408: A hospital staff mixed a 75% disinfectant solution with a 25% disinfectant solution. How many liters of each were used to make 20 L of a 45% disinfectant solution?
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Algebra.Com's Answer #290122 by kamallohia(18)\"\" \"About 
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We need to mix 2 parts of 75% solution with 3 parts of 25% solution to make 5 parts of 45% solution as 2*75 + 3*25 = 5*45.
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