Body water content in percentage of body weight is lowest in -: (A) Well-built man, (B) Fat woman, (C) Well nourished child, (D) Fat man
Answer is B. Lean tissues such as muscle and solid organs have higher water content than fat and bone. Thus, young lean males have a higer proportion of body weight as water than elderly or obese persons. Females as such have a lower percentage of total body water because of less muscle mass and more fat.