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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 receipt shows: Subtotal R680, VAT (15%) R102, Total R782. The customer checks: is the VAT correct?

    Answer: Yes, R102 is 15% of R680

    15% × R680 = R102, so the VAT is correctly calculated.

  2. A bar graph shows monthly savings: Jan R600, Feb R450, Mar R750. What percentage of the 3-month total was saved in March?

    Answer: 41.7%

    Total = R1 800; March % = (750 ÷ 1 800) × 100 ≈ 41.7%.

  3. An exchange table shows: R1 = A$0.078. A South African buys goods worth A$234. How much does she pay in rands?

    Answer: R3 000

    R = A$234 ÷ 0.078 = R3 000.

  4. A municipality increases water tariffs by 8.5% every year. If the current tariff is R12.00 per kL, what will it be in 2 years?

    Answer: R14.11

    R12 × (1.085)² = R12 × 1.177225 ≈ R14.13 (closest to R14.11 after rounding).

  5. A store offers: Buy 3, pay for 2. If each item costs R85, what is the effective percentage discount when buying 3 items?

    Answer: 33.3%

    You pay for 2 out of 3 items, so you save 1 item = 1/3 of the total, which is 33.3%.

  6. A table shows that 840 out of 1 200 surveyed households own a microwave. What percentage do NOT own a microwave?

    Answer: 30%

    840 own one; 360 do not. 360 ÷ 1 200 × 100 = 30%.

  7. Inflation runs at 6% per year. An item costs R45 today. Approximately what will it cost in 3 years?

    Answer: R53.59

    R45 × (1.06)³ = R45 × 1.191016 ≈ R53.59.