Question

ms.black paid $32 intrest at the rate of 8% on a loan of $200. For how long was the loan?

Answer 1

$\bf~~~~~~ \textit{Simple Interest Earned}\\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\to &\ 32\\ P=\textit{original amount deposited}\to& \ 200\\ r=rate\to 8\%\to \frac{8}{100}\to &0.08\\ t=years \end{cases} \\\\\\ 32=200(0.08)t\implies \cfrac{32}{200(0.08)}=t$