SOLUTION: How many liters of a 20% salt solution must be added to 45 liters of a 60% salt solution, in order to produce a 35% salt solution? If possible, could you write out how it would be
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Question 724361: How many liters of a 20% salt solution must be added to 45 liters of a 60% salt solution, in order to produce a 35% salt solution? If possible, could you write out how it would be done?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of 20% solution needed
= liters of salt in 20% solution
liters of salt in 60% solution
-----------------
( total liters of salt ) / ( total liters of solution ) = 35%
75 liters of 20% solution are needed
check:
OK
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