SOLUTION: A physician asks that 250 ml of a 15% solution be prepared from a stock supply of 80% solution. How many milliliters of the 80% solution will be used?

Question 835219: A physician asks that 250 ml of a 15% solution be prepared from a stock supply of 80% solution. How many milliliters of the 80% solution will be used?
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
There is no way you can get a 15% solution
from an 80% solution unless you add a
solvent, like water, etc.
Is solvent to be added?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A physician asks that 250 ml of a 15% solution be prepared from a stock supply of 80% solution. How many milliliters of the 80% solution will be used?
--------------
250*0.15 = 37.5 ml of whatever it is
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37.5/0.8 = 46.875 ml

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