Question

Juan is investing his money. He thinks that he should make $12 for every $100 he invests. How much does he expect to make in an investment of $4200?

Answer 1

We have to estimate how much he expects to make investing $4200 if he should make $12 for every $100.

We can apply the rule of three as:

`\begin{gathered} 100-->12 \\ 4200-->x=4200*(12)/(100) \\ x=4200*0.12 \\ x=504 \end{gathered}`

Answer: he expects to make $504.