If you have a total cholesterol/HDL cholesterol ration of 4.0, what % of your cholesterol is bound to HDL?

Answer 1

You might get a better answer if you post this question in the Medicine section.

But if the ratio of Total Cholesterol to HDL is 4, then you have 1 part HDL and 3 parts everything else, so HDL is 25% of your total cholesterol.