SOLUTION: An amount of 40% acid solution is to be mixed wih enough 10% acid solution to make 25% acid solution. If there are to be 2o liters of the final mixture, how much of each solution s
Question 363416: An amount of 40% acid solution is to be mixed wih enough 10% acid solution to make 25% acid solution. If there are to be 2o liters of the final mixture, how much of each solution should be mixed together? Found 2 solutions by josmiceli, Alan3354:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 40% solution needed
Let = liters of 10% solution needed
given: = liters of alcohol in 40% solution = liters of alcohol in 10% solution = liters of alcohol in final solution
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(1)
(2)
from (1)
(1)
(1)
Subtract (2) from (1)
and
1 liter of 40% solution and 1 liter of 10% solution are needed
check:
(1)
(1)
OK
You can put this solution on YOUR website! Since 25% is the average of 10% and 40%, it's equal amounts.
Either 1 liter or 10 liters of each, depending on what 2o means.
