Answer:
At the interest rate of 8%, The answer is Yes. The investment is profitable.
At the interest rate of, the answer is No. The investment is not profitable
Explanation:
For the investment to be profitable, its NPV discounted at the interest rate should be greater than the initial cost of investment of $10,000.
For scenario 1, the interest rate is 8%, the NPV is:
NPV = (4,000/0.08) x ( 1- 1.08^-3) = $10,308.4; which is greater than $10,000. Thus, the investment is profitable
For scenario 2, the interest rate is 12%, the NPV is:
NPV = (4,000/0.12) x ( 1 - 1.12^-3) = 9,607.3; which is lower than $10,000. Thus, the investment is unprofitable.