Janina, Incorporated, has the following mutually exclusive projects.

Year Project A Project B

$0$$ $20,000$$ $23,000$

$115,20014,300$

$25,9008,100$

$32,1007,100$

a$-1.$ Calculate the payback period for each project. $($Do not round intermediate calculations and round your answers to $3$ decimal places, e$.$g$.,32\mathrm{.}161.)$