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
Mpho earns R18 400 per month. He receives a bonus equal to 150% of one month's salary. What is his total income for that month?
Answer: R46 000
Bonus = 150% × R18 400 = R27 600; total = R18 400 + R27 600 = R46 000.
A cell phone contract: pay R299 per month for 24 months with R0 upfront. The phone's cash price is R5 400. How much more do you pay on the contract?
Answer: R1 776
Contract total = R299 × 24 = R7 176; extra = R7 176 − R5 400 = R1 776.
A pie chart shows a household budget. Savings is 12% of income. If savings = R2 160, what is the monthly income?
Answer: R18 000
Income = R2 160 ÷ 0.12 = R18 000.
A retailer buys shirts at R240 each and sells them at R318. A sale offers 15% off. Is there still a profit?
Answer: Yes, R30.30 profit
15% off R318 = R270.30; profit = R270.30 − R240 = R30.30.
A graph shows population growth from 12 000 (2010) to 15 600 (2020). What is the percentage growth over the decade?
Answer: 30%
Growth = 3 600; % = (3 600 ÷ 12 000) × 100 = 30%.
Simple interest on R7 500 at r% per annum for 2 years amounts to R1 500. What is r?
Answer: 10%
r = I ÷ (P × t) = 1 500 ÷ (7 500 × 2) = 1 500 ÷ 15 000 = 0.10 = 10%.
After a 25% increase, a product costs R625. What was the original price?
Answer: R500
R625 = 125% of original; original = R625 ÷ 1.25 = R500.