Question

Write an algebriac expression for the simple interest to be paid, using principal and the rate of simple interest and times. Also find the amount.

Answer 1

If $r\%$ is the rate of simple interest to the principal $p$ for a time period of $t$ years.

Then simple interest to that principal is $\frac{p\times t\times r}{100}$.

Then the amount will be $p+\frac{ptr}{100}$.