Answer and Explanation:
The computation is shown below:
Discount rate 5%
Year Cash flow Discounting cash flows Cumulative cash flows
0
1 $8,000 7,619.05 7,619.05
2 $9,000 8,163.27 15,782.313
3 15,782.31
4 $20,000 16,454.05 32,236.36
PV of loan = 32,236.36
Now
37000 ÷ 1.05^t = 32236.36
t = 2.8248
Discounting cash flows is
= cash flows ÷ (1+rate)^year