X$-$treme Vitamin Company is considering two investments, both of which cost $$38,000.$ The cash flows are as follows:YearProject AProject B$1$$ $40,000$$ $38,000210,0009,000315,00020,000$Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods.a$-1.$ Calculate the payback period for Project A and Project B$.$