SOLUTION: How many liters of a 10% saline solution must be mixed with 20 liters of a 15% saline solution to make a 12% saline solution?
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Question 737783: How many liters of a 10% saline solution must be mixed with 20 liters of a 15% saline solution to make a 12% saline solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of 10% solution needed
= liters of salt in 10% solution
liters of salt in 15% solution
-------------------
30 liters of 10% solution are needed
check:
OK
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