Question 355837: How much pure water must be mixed with 8 pints of 60% developer to produce a mixture that is 24% developer? Found 2 solutions by Alan3354, vleith:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! How much pure water must be mixed with 8 pints of 60% developer to produce a mixture that is 24% developer?
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8 pts of 60% --> 4.8 pts of developer
For 4.8 pts to be 24%, the total solution is 4.8/0.24 = 20 pts
Add 12 pts of water
You can put this solution on YOUR website! How much developer is in the 8 pints? pints
So now, how many pints of 24% liquid would have that same 4.8 pints of developer in it?
total pints
So how much do you have to add? 20-8 = 12 pints of pure water
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