Auto Pty Ltd ha the following two project, and they are mutually excluive project. The required rate of return i 12%. The company ha recorded the following cah flow for four year. Year Cah Flow (P) Cah Flow (Q) 0 −$ 500,000 −$ 600,000 1 60,000 70,000 2 90,000 120,000 3 200,000 220,000 4 250,000 200,000 a) Work out the payback for both project