SOLUTION: The doctor told nurse to dilute the antiseptic solution for the baby from 25% to 15%. How much water must she add to 1 liter of the 25% solution to get a 15% solution?

Question 960800: The doctor told nurse to dilute the antiseptic solution for the baby from 25% to 15%. How much water must she add to 1 liter of the 25% solution to get a 15% solution?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
1 liter of 25% antiseptic contains (0.25)(1liter)=0.25liter antiseptic.
That will make (0.25liter/0.15)=1.67 liter of 15% antiseptic.
To make 1.67 liter of 15% from 1 liter of 25% she must add 0.67 liters of water.
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