8.1 A new cell phone was purchased for R 7 200. Determine the depreciation value after 3 years if the cell phone depreciates at 25% per annum on reducing balance method. **(3)**

8.2 An amount of R 500 is invested at x % per annum compounded half yearly. After 6 years it has grown to R 1 126,10. Calculate the value of **x**, correct to two decimal places. **(4)**

8.3 John invest R 120 000. He is quoted a nominal interest rate of 7,2 % per annum compounded monthly.

8.3.1 Calculate the effective interest rate p.a. correct to three decimal places.** (3)**

8.3.2 Use the effective interest rate to calculate the value of Johnâ€™s investment if he invested the money for 3 years.** (3)**

8.3.3 Suppose John invest his money for a total of 4 years, but after 18 months he makes a withdrawal of R 20 000. How much will he receive at the end of 4 years? **(4)****[17]**