# SOLUTION: What is the strength of a salt solution that contains 12 gallons of salt and 18 gallons of pure water? gal. salt gal water 12

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 Question 13714: What is the strength of a salt solution that contains 12 gallons of salt and 18 gallons of pure water? gal. salt gal water 12 18Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!before: 18*0.00 (no salt in pure water) 12*1.00 (100% of salt) after: 30*x so, 0 + 12 = 30x --> x = 12/30 x = 0.40 so 40% salt solution. jon.