Since the investment amount and cash flows of the projects are as follows and the projects are possible together, explain which project or which projects should be preferred according to the Internal Rate of Return (IRR) method, showing the calculations for each project?

Years Project A project B

Investment amount 3000 2000

1 1000 1600

2 1000 1600

3 800 500

cost of capital %20 %15

(please take the value in question, there is no mistake)