What is the IRR of both the project based on Trial and error method?Show the procedures.

Lez Foxwell has been operating a small transportation company for 25 years. The business has boomed in recent years, and Lez decided to invest another $300 000 to expand his business. There are two proposed mutually exclusive projects, and their cash flows are as follows. Year 1 2 3 4 5 o -300 000 50 000 50 000 50 000 150 000 430 000 Project A Project B -300 000 200 000 100 000 100 000 100 000 100 000 Although Lez only has limited formal business training, he feels that project B is better since he can get his initial invested money back in two yearstime. He also wants to get some advice from his son David, who will soon graduate with an undergraduate degree in com- merce. For Lez's small business, the cost of capital is 10%. David would like to provide some information about the capital budgeting to Lez by addressing the following questions