Question

A wizard-in-training has 300 grams of 20% liquid-gold solution. He wishes to drain some and replace it with an 80% solution, so that he gets 300 grams of 35% solution. How many grams should the wizard drain and replace with 80% solution?

Answer 1

75 grams! hope this helps :3

Answer 2

it would take 4 grams. I hope this helps