Question

If 10% of my money is $15, then what is 40% of my money?

Answer 1

$21

Explanation:

if 10% is $15 then 40%*$15 is $21

Answer 2

`\begin{array}{ccll} \%&amount\\ \cline{1-2} 10&15\\ 40&x \end{array}\implies \cfrac{10}{40}=\cfrac{15}{x}\implies \cfrac{1}{4}=\cfrac{15}{x}\implies x=60`