SOLUTION: how much water must be added to 350 litres of solution so that its concentration changes from 25% to 30%?

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Question 697007: how much water must be added to 350 litres of solution so that its concentration changes from 25% to 30%?
Found 2 solutions by Alan3354, lynnlo:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how much water must be added to 350 litres of solution so that its concentration changes from 25% to 30%?
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Concentration of what?
Adding water will reduce the concentration.

Answer by lynnlo(4176) About Me  (Show Source):