<prompt> The average value of total body water in a young man In... of body weight20-4030-5060-6590-96  <response>: C 60-65 BODY COMPOSITION: In an average young adult male, 18 of body wt is protein.7 is mineral, and 15is fat. The remaining 60 is water. The intracellular component of body water accounts for about 40 of body wt. and the extracellular component for about 20. Approximately 25 of the extracellular component is in the vascular systemplasma 5 of body wt. and 75 outside the blood vesselsinterstitialfluid15 of body wt.. The total blood volume is about 8 of the body wt. 