An investment project costs $$19,600$ and has annual cash flows of $$4,200$ for six years.

a$.$ What is the discounted payback period if the discount rate is zero percent?

Discounted payback period

b$.$ What is the discounted payback period if the discount rate is $4$ percent?

Discounted payback period

c$.$ What is the discounted payback period if the discount rate is $18$ percent?