SOLUTION: Find the quantity of a 30% solution which must be mixed with a 15% solution to produce 600 kg of 25% solution

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Question 711414: Find the quantity of a 30% solution which must be mixed with a 15% solution to produce 600 kg of 25% solution
Answer by Alan3354(69443) About Me  (Show Source):
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Find the quantity of a 30% solution which must be mixed with a 15% solution to produce 600 kg of 25% solution
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t = amount of 30%
f = 15%
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t + f = 600
30t + 15f = 25*600
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etc