Question

The number of kilograms of water in a human body varies directly as the mass of the body. A 66 kg person contains 44 kg of water. How many kilograms of water are in a 144 kg person?

Answer 1

Given:

A 66 kg person contains 44 kg of water.

To find:

The number of kilograms in a 144kg person.

Step-by-step explanation:

According to the problem, 66 kg person contains 44 kg of water.

For 1 kg person contains,

`\begin{gathered} 1kg\text{ of person}=(44)/(66)kg\text{ of water} \\ =(2)/(3)kg\text{ of water} \end{gathered}`

Then, for 144kg of a person contains,

`\begin{gathered} 144kg\text{ of a person}=144*(2)/(3)kg\text{ of water} \\ =96kg\text{ of water} \end{gathered}`

Therefore, 144kg per person contains 96 kg of water.

Final answer:

144kg per person contains 96 kg of water.