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 - $15,092,041 $25,612,636 1- $1,984,893/year $3,018,964/year 75 A What is the incremental benefit/cost ratio? Enter your answer as follow: 12.34