The estimated future market valyes and M&O costs for the following defender and challenger are shown below. We are interest only in what happens over the next three years. If the defender is to be replaced, it must be done now or kept in-place for the 3 years. If i=10%/year and 3-year study period, determine whether or not the challenger is economically advantageous now.

Defender Challenger

Year Market Vale, $ M&O Cost, $ Market Value, $ M&O Cost, $

0 40,000 80,000

1 32,000 -45,000 65,000 -37,000

2 23,000 -45,000 39,000 -37,000

3 11,000 -45,000 20,000 -37,000

4 19,000 -38,000

5 11,000 -39,000

ANSWER CHOICE:

A) Replace the defender now

B) Replace the defender after one year

C) Replace the defender after two years

D) Keep the defender for another year