The firm A is considering two investment projects (A and B). They both take 3 years to complete and require an initial investment outlay of 200,000.

1) The firm expects the following cash flows from project A: CF1=20,000; CF2=120,000; CF3=160, 000.

2) The firm expects the following cash flows from project B: CF1=140,000; CF2=100,000; CF3=40,000.

Question: Do NPV profiles of these two projects cross over? What's the cross over rate?