A tax exempt municipality is considering the construction of a new municipal waste water treatment facility. Two different sites have been selected as technically, politically, socially, and financially feasible. The city council uses 6% interest rate for all analyses for public projects. The expected cash flow for the two alternatives are as follow: Year Alt. A Alt. B 0 - $12,892,319 - $27,306,915 1 - $1,820,828/year $3,016,475/year 75 What is the incremental benefit/cost ratio? Enter your answer as follow: 12.34