4.1. You invest R 16 000.00 at an interest rate of 15% per annum. After how many years will your investment grow to a value of R 40 000.00 if the interest earned is: 4.1.1. simple? (3 marks) 4.1.2. compounded? (5 marks)

4.2. You consider buying a business for R 900 000. The business is expected to run for 5 years and the following net returns are expected. YEAR 1 : R 150 000 YEAR 2 : R 200 000 YEAR 3 : R 290 000 YEAR 4 : R 320 000 YEAR 5 : R 220 000 Should you buy the business? A project of this type is expected to return at least 12% per annum. (17 marks)