this is how the question is given im not sure about the discount rate

Zakariya is trying to evaluate the profitability of the following investment. Initial Investment needed to purchase the necessary equipment: AED 330,000. The net annual cashflows are presented as follows: Year 1 2 3 4 Net annual 86,000 82.000 78,000 74,000 Cash flows 1. Calculate the payback period of Zakariya's project (14 marks) 2 Zakariya is expecting a payback period of a maximum of 2 years. Do you advise Zakariya to accept or to reject the project (4 Marks) For the toolbar, press ALT F10 (PC) or ALT.PN+F10 (Mac). Igs Paragraph Arial 10pt EA Ixo da Zakariya is trying to evaluate the profitability of the following investment. Initial Investment needed to purchase the necessary equipment: AED 330,000. The net annual cashflows are presented as follows: Year 1 2 3 4 Net annual 86,000 82.000 78,000 74,000 Cash flows 1. Calculate the payback period of Zakariya's project (14 marks) 2 Zakariya is expecting a payback period of a maximum of 2 years. Do you advise Zakariya to accept or to reject the project (4 Marks) For the toolbar, press ALT F10 (PC) or ALT.PN+F10 (Mac). Igs Paragraph Arial 10pt EA Ixo da