Answer:
Step-by-step explanation:
Present value (PV) is sum of all cash flows discounted at 7%.
(a) Annual decrease = $2,000
PV is computed as follows.
Year Cash Flow ($) PV Factor at 7% Discounted Cash Flow ($)
(A) (B) (A) x (B)
1 20,000 0.9346 18,692
2 18,000 0.8734 15,722
3 16,000 0.8163 13,061
4 14,000 0.7629 10,681
5 12,000 0.7130 8,556
6 10,000 0.6663 6,663
7 8,000 0.6227 4,982
8 6,000 0.5820 3,492
9 4,000 0.5439 2,176
10 2,000 0.5083 1,017
PV ($) = 85,041