Principles of Engineering Economic Analysis; Chapter 8 #9 page 381 (5th edition). I've been struggling with this for hours, any help is appreciated, 10 points to best answer.



Question: An engineer prepares a report to evaluate a project using PW and IRR. Just before submitting the report, he spills coffee on it making his first digit IRR unreadable. The second digit is a 2. The PW is negative and MARR is 15%. He doesn't have time to redo the analysis. Can you help him figure out the IRR. Thanks in advance!