Home | Maths | Science | Tests

Financial Mathematics 2
MATHEMATICS OF FINANCE

You should be able to:

1. solve problems involving depreciation.
2. solve compound interest problems where the period of compounding is less than a year.
3. differentiate between nominal and effective interest rates.
4. solve compound interest problems in respect of fluctuating interest rates.
5. solve problems on compound growth and decay.

Formulae used

Simple Interest

Compound Interest


Simple interest
1. R700 is invested at 8, 2% p. a simple interest for 3 years. Calculate the interest earned.

2. R11 300 is invested at 6% p. a simple interest. Calculate the future value after 12 years.

Hire Purchase or add on interest
1. Mr Khumalo buys a car from Fast Cars for R 75 000. He pays a deposit of R 8000 and agrees to pay the rest over 36 months on a hire purchase plan at 21% p.a.
What is his monthly installment?

Compound Growth and Decay
1. South Africa has an estimated growth rate of 2,3% p.a. If the present population is 46 543 276, determine the population of the country in 2010?

2. Determine the accumulated amount if R32 000 is invested at 15% p.a. compound interest for 3 years.

3. A photocopier costs R 54 000. Calculate the expected cost of a new photocopier in 3 years time, assuming an annual inflation rate of 10% p.a. over these years.