Please give me answer with at least 3decimal place : ) thank you

You are choosing between two projects. The cash flows for the projects are given in the following table ($ million): Project A B Year 0 - $52 - $101 Year 1 $27 $21 Year 2 $22 $39 Year 3 $20 $48 Year 4 $14 $62 a. What are the IRRs of the two projects? b. If your discount rate is 4.6%, what are the NPVs of the two projects? c. Why do IRR and NPV rank the two projects differently