Mass of a person

Question

The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person with a mass of 54 kg?

Answer 1

Kilograms of water in a person = ( 60 * 54 ) / 90

who has a mass of 54 kg.

 

 

= 36 kg.

 

 

There's 36 kg of water in a person weighing 54 kg.