Answer: Project B
Step-by-step explanation:
To find out the project that should be accepted based on the discount rate and the cut-off discounted payback periods, find the present value of the three year cashflows of each project. If it is larger than the initial investment then it should be accepted:
Project A
= 3,000 / (1 + 12%) + 7,000 / (1 + 10%)² + 10,000 / (1 + 12%)³
= $15,376.73
Project A's present value is less than the initial investment of $18,000 so it should not be chosen.
Project B
= 3,000 / (1 + 12%) + 7,000 / (1 + 10%)² + 15,000 / (1 + 12%)³
= $18,935.63
Project B's present value is larger than the initial investment of $18,000 so it should be chosen.