that is all the information that is given. no more can be provided. thats it.

An Oil-drilling company must choose between two mutually exclusive extraction projects, and each cost $12 million. Under Plan A, all the oil would be extracted I 1 year, producing a cash flow at $14.4 million. Under Plan B, cash flows would be $2.1 million per year for 20 years. The Firm's WACC IS 13%. Calculate the firms Discounted Payback periods for Plan A and Plan B