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#1 2008-01-28 10:03:47
- 44halfj
- Novice
Offline
Solution Problem
How do you set this one up?
If you have an unknown amount of 30% solution and an unknown amount of 70 % solution, how much of each doyou need to make 12L of 45 % solution?
#2 2008-01-28 12:16:14
- JaneFairfax
- Legendary Member
Offline
Re: Solution Problem
If you mix V litres of the first solution and W litres of the second solution, the concentration of your resulting solution will be
You want
and
So just solve the two simultaneous equations in V and W for your answer.
