SOLUTION: A certain volume of a solution 90% pure acid and 10% water is mixed with another solution containing 97% acid and 3% water If the mixture obtained is 21 litres of 95% acid solutio

Question 1123990: A certain volume of a solution 90% pure acid and 10% water is mixed with another solution containing 97% acid and 3% water If the mixture obtained is 21 litres of 95% acid solution, what is the difference between the volumes of the two solutions mixed?
Found 3 solutions by josgarithmetic, josmiceli, ikleyn:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
x, volume used for the 90% acid solution

-

The two volume quantities: 14 and 6 liters
Their difference: 8 liters

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = the liters of 90% mixture used
= liters of the 97% mixture
��

And

The difference between the volumes is
liters
��
Check:

OK

Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
The solution by @josmiceli is correct.

The solution by @josgarithmetic is wrong.

Simply ignore it.

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