(Sudbury, Ontario, Canada)
This question involves 3 different strengths of product to result in a final needed %strength.
Reply (by Keith)
I know how to solve the problem using 2 products but not 3. Please show me the correct solution.
You need to use 3 solutions of drug "H" containing respectively 50%, 20% and 5% to make 600mL of 10% drug "H". How much of the 50% will you use?
D. None of the above
For this I would use an Alligation.
Here's a video how: