1. **Problem Statement:** A company has issued a 5-year loan of 90000 to a new vice president with simple interest at 8% per year. We need to find the interest to be paid after 5 years. 2. **Formula for Simple Interest:** $$I = P \times r \times t$$ where $I$ is the interest, $P$ is the principal amount, $r$ is the annual interest rate (in decimal), and $t$ is the time in years. 3. **Substitute the values:** $$P = 90000, \quad r = 0.08, \quad t = 5$$ 4. **Calculate the interest:** $$I = 90000 \times 0.08 \times 5 = 36000$$ 5. **Interpretation:** The interest to be paid on the loan after 5 years is 36000. **Final Answer:** The interest to be paid is 36000.