Answer:
13.08%
Step-by-step explanation:
this is an annuity due, and to determine its present value we can use the following formula:
present value = (annual payment / i) x {1 - [1 / (1 + i)ⁿ]} x (1 + i)
100,000 = (15,000 / i) x {1 - [1 / (1 + i)¹²]} x (1 + i)
The math is really complicated if you do it by hand, instead you should use a financial calculator. You would need to calculate the IRR, but the cash flows are:
first cash flow = -85,000
then 11 cash flows of 15,000 (remember that an annuity due is collected in advance)
IRR = 13.08%