Question

The formula for simple interest is I = Prt where I is the interest earned, P is the Principal, r is the interest, and t is the number of years. Solve the formula for "t" in terms of P, i, and r. t = ?

Answer 1

$I=Prt\text{ }$

To solve "t", simply divide both sides by Pr.

$\begin{gathered} \frac{I}{Pr}=\frac{Prt\text{ }}{Pr} \\ \frac{I}{Pr}=t \\ t=\frac{I}{Pr} \end{gathered}$

Therefore, the formula for t is t = I/Pr as shown above.