How much pure water must mixed with 8 pints of 50 developer to produce a mixture that is 24%?

8:24 = 0.333 (3) pints is one percent

0.333 (3) * 100=33.333 (3) pints will be 24% mixture with the water

33.3333-8=25.333 pints of water is required for producing 24% mixture

25.3333 pints of pure water and 8 pints of juce.