The following two mutually exclusive projects have cash flows for its 5 years lifetime and cost of capital should be based on financing rubric in the problem (a).

Year Cash flows Amra(Tk.) Cash flows BDcom (Tk.)

0 (12000) (18000)

1 6500 5500

2 -2700 5500

3 4700 5500

4 5900 6500

5 5100 -5500

a. Calculate PB period and NPV and IRR of the projects and give a decision rule based on your findings of the projects