Given two municipal projects with the following information, select the best project based on the benefit-cost criterion

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Given two municipal projects with the following information,
select the best project based on the benefit-cost criterion.
Project A: outlay is $400,000, costs is $50,000, revenue is
$85,000, interest is 8%, salvage is $0, and the term is 15
years.
Project B: outlay is $300,000, costs is $80,000, revenue is
$85,000, interest is 8%, salvage is $0, and the term is 15
years.
*** Work must be shown i.e. do not use Excel.