Calculate the present value of the following cash flow stream discounted at 10 5% per year 1) R54305 2) R76207 3) R84112 4) R99663 5) R108208 Calculate the IRR for the cash flow stream in Question 3 1) 12 4% 2) 14 8% 3) 16 8% 4) 17 5% 5) 23 8%