SOLUTION: Dino has 20 ounces of 20% of salt solution, how much salt should he add to make it a 25% solution

Question 829284: Dino has 20 ounces of 20% of salt solution, how much salt should he add to make it a 25% solution
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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20*20 + 100x = 25(x + 20)
400 + 100x = 25x + 500
75x = 100
x = 100/75
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answer:
add 1.333333 oz of pure salt to the existing 20% solution
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