If a person weighs 100 pound how much of that weight is water

The weight of the water in that person body will be 500 to 650 pounds.

Explanation: A normal person body contains 50-65% of water. Our body is made up of many biological and chemical compounds like proteins, carbohydrates, lipids, and water. In all of these water is the major compound present in the body. An infant body contains much weight of water than an adult person. Hence for a person of 1000 pounds, the weight of the water will be 500 to 650 pounds.