Question

How many liters of 15% acid and 33% acid should be mixed to make 40 liters of 21% acid solution?

Answer 1

26 and 2/3 of 15% acid

13 and 1/3 of 33% acid

Explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)