Please show how to do it on excel and hint: use Goal Seek function in Excel to solve "n" for Alt B

9- Consider two alternatives: 62 A A B Cost $650 $425 Uniform annual benefit 95 95 Useful life, in years Infinity X Assume that Alt. B is not replaced at the end of its useful life. If the MARR is 10%, what must be the useful life of B to make Alternatives A and B equally desirable