Problem $9$ What are the profitability indexes and the NPVs of the following two projects: project

A that requires an investment of $$5$ and gives $$20$ per year for three years, and project $B$ that

requires an investment of $$9$ and gives $$25$ per year for three years? The interest rate is $10\%.$ If

you can invest in only one of the projects, which would you choose?