Question

some athletes have as little as 3.0% body fat. if such a person has a body mass of 69kg. how many pounds of body fat does that person have?

Answer 1

$69kg \ \ \rightarrow \ \ 100\%\\ x\ \ \ \ \ \ \ \rightarrow \ \ 3 \%\\\\\ x=\frac{3\%*69kg}{100\%}=2,07kg\\\\\\ 1kg \ \ \ \ \ \ \ \rightarrow \ \ \ 2,2 \ pounds\\ 2,07kg \ \ \rightarrow \ \ \ x\\\\ x=\frac{2,07kg*2,2pounds}{1kg}=4,554pounds$