Mixed Review: Choose the Method
These questions combine budgeting, percentages, profit, wages, interest, hire purchase, exchange rates and financial documents.
Part A: Core Skills
- Increase US$480 by 12%.
- Find the original price if US$168 is the price after a 30% discount.
- An item costs US$90 and sells for US$117. Find profit percentage.
- Find 15% VAT on US$260.
- Find 5% commission on US$7,200.
Part B: Interest and Payment Plans
- Find simple interest on US$900 at 8% for 2.5 years.
- Find the amount on US$1,500 at 6% compound interest for 3 years.
- A cash price is US$700. HP terms are US$140 deposit and 20×US$34. Find extra paid.
Part C: Applications
- At US$1=R18.60, convert R7,440 to US dollars.
- A worker earns US$6 per hour for 40 hours and time-and-a-half for 8 overtime hours. Find gross pay.
- An invoice has a subtotal of US$360, a 12% discount and 15% VAT. Find the final amount.
- An account opens at US$750, receives US$320 and has debits of US$165.50, US$210 and US$8.75. Find closing balance.
✅ Check Your Work
Show mixed review answers
- US$537.60.
- US$240.
- 30%.
- US$39.
- US$360.
- US$180.
- 1500(1.06)³≈US$1,786.52.
- Total HP=140+680=820; extra=US$120.
- US$400.
- Normal=240; overtime=72; gross=US$312.
- 360×0.88×1.15=US$364.32.
- 750+320−165.50−210−8.75 = US$685.75.
Reflection
- Can you choose the correct percentage multiplier?
- Can you distinguish simple from compound interest?
- Can you compare cash and instalment plans?
- Can you interpret rates and financial documents?
Revision Guidance and Readiness
- Attempt the questions without notes first.
- Use the answers or worked solutions to identify the exact step that needs attention.
- Return to the relevant lesson, then retry missed questions.
- You are ready to move on when you can explain your method and check your result independently.