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NBT Quantitative Literacy: Percentages and Financial Mathematics Flashcards

7 cards from real NBT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 NBT Quantitative Literacy: Percentages and Financial Mathematics flashcards as text

  1. A company spends R420 000 on salaries and R180 000 on other costs. Salaries are what percentage of total expenditure?

    Answer: 70%

    Total = R600 000; % salaries = (420 000 ÷ 600 000) × 100 = 70%.

  2. An investment triples in value over 12 years using compound interest. Approximately what annual interest rate was earned?

    Answer: 9.6%

    (1 + r)^12 = 3; r = 3^(1/12) − 1 ≈ 0.096 = 9.6%.

  3. A hire-purchase agreement for R9 000 requires a 10% deposit and 18 monthly instalments of R480. What is the total amount paid?

    Answer: R9 540

    Deposit = 10% × R9 000 = R900; monthly total = 18 × R480 = R8 640; total paid = R900 + R8 640 = R9 540.

  4. R20 000 is invested at 6.5% compound interest per annum. What is the value after 5 years?

    Answer: R27 371.38

    A = R20 000 × (1.065)^5 = R20 000 × 1.36857 ≈ R27 371.38.

  5. A line graph shows a family's monthly food expenses: March R1 800, April R2 160. What is the percentage change?

    Answer: 20%

    Change = R360; % = (360 ÷ 1 800) × 100 = 20%.

  6. A student has R1 200 to spend. She allocates 40% for textbooks, 30% for food, and the rest for transport. How much is for transport?

    Answer: R360

    Remaining % = 30%; transport = 30% of R1 200 = R360.

  7. An item costs R1 610 including 15% VAT. Which expression gives the correct pre-VAT price?

    Answer: R1 610 ÷ 1.15

    Pre-VAT = R1 610 ÷ 1.15 = R1 400, because the R1 610 already includes VAT.