DSC1630 Oct/Nov 2017 exam paper — questions

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  1. Question 1 · Simple interest and simple discount · 3 marks

    Joan will need R18 000 in 20 months' time. To reach this she opens a savings account earning 8,47% simple interest per year. Determine the amount she must invest now.Show the full question

  2. Question 2 · Compound interest and effective rates · 3 marks

    Luke receives a gift of R5 000 from his uncle and invests it at 12% interest per annum, compounded monthly. Determine how long he must wait for the amount to grow to R10 034.Show the full question

  3. Question 3 · Compound interest and effective rates · 3 marks

    Mareli borrowed R900 from Sandile and R850 from Jonah, and must repay both amounts with interest added eight months from now. Both Sandile and Jonah charge her 15% per annum, compounded monthly. Determine the total amount Mareli will pay Sandile and Jonah eight months from now.Show the full question

  4. Question 4 · Compound interest and effective rates · 3 marks

    If a bank charges 12% interest, compounded quarterly, determine the effective annual interest rate that the bank charges.Show the full question

  5. Question 5 · Compound interest and effective rates · 3 marks

    Thabo will need R36 000 in five years' time. Determine the amount of money he must invest now at an interest rate of 7,5% per year, compounded continuously.Show the full question

The full Spot Map and the marks by year — and this paper’s scan.