Two mutually exclusive design alternatives are shown below. The MARR is 12% per year. Use the repeatability assumption.

What is the PW of Alternative A and B?

And which alternative should be recommended?

please solve normally, not excel

Alternative A Alternative B Capital Investment $23,000 $25,000 Annual expenses $8,852 $9,503 Annual revenue $15,492 $17,381 Market Value at $2,000 $2,100 end of useful life Life 4 years 12 years IRR 19.3% 15.7%