SOLUTION: I have a solution mixture of say A and B. The weight is 47kg with a solution strength of 54% of A. How much of B do I need to add in Kg to bring the mixture to a 50% solution?

Question 819529: I have a solution mixture of say A and B. The weight is 47kg with a solution strength of 54% of A. How much of B do I need to add in Kg to bring the mixture to a 50% solution?
Found 2 solutions by josgarithmetic, josmiceli:
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Let w = mass of solution B to add to the mixture of A & B.

, simply using solution B to dilute solution A concentration in the mixture.
Solve for w.

NOTE: Mistake is now fixed.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The amount of A in the mixture is
kg
The amount of B is
------------
Let = the kg of B to be added

1.88 kg of B needs to be added

RELATED QUESTIONS
I have 60% concentrate, I need to mix a 1000 gallons of water to a .60 solution strength. (answered by Alan3354)
You need 810 mL of a 30% alcohol solution. On hand, you have a 5% alcohol mixture and a... (answered by josgarithmetic)
We disinfect with 8% strength Sodium Hypochlorite. We've run out of that and have to... (answered by stanbon)
I have 100 gallons of 70% solution. I need to mix it with a 90% solution to obtain a 75%... (answered by TimothyLamb,amalm06)
A tank holds 140 liters of a chemical solution. Currently, the solution has a strength... (answered by stanbon)
A tank holds 80 liters of chemical solution. Currently, the solution has a strength of... (answered by Boreal)
A tank holds 80 liters of a chemical solution. Currently, the solution has a strength of... (answered by ptaylor)
a tank holds 80 liters of a chemical solution. Currently, the solution has a strength of... (answered by josmiceli)
A tank holds 80 liters of a chemical solution. Currently, the solution has a strength of... (answered by josgarithmetic)