MNO Corporation is considering two investment projects, Project Green and Project Yellow, both requiring an initial investment of ZAR 200,000. The expected after-tax cash inflows are:

Year	Cash Flows (Project Green)	Cash Flows (Project Yellow)
Initial Investment	(200,000)	(200,000)
1	70,000	60,000
2	60,000	70,000
3	50,000	60,000
4	40,000	50,000

a. Calculate the Payback Period for each project.

b. Which project should be chosen based on the shortest payback period?