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Quiz

Year 3: Compound interest

10 questions with solutions for year 3: compound interest, interest added at the end of each period, yearly, half-yearly and quarterly – review problems.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. 4000 euros at 8% a year, compound. What is the sum after 2 years (euros)?

2. How much was deposited if 10000 denars were paid out after 3 years at 1% a year?

3. 12750 denars grew to 24200 denars in 3 years (yearly, compound). The yearly rate is about:

4. 1300 euros at 7% (pa)d grew to 1700 euros. After how many years (rounded)?

5. 1000 denars for 8 years: 5% for the first 2 years, 6% for the next 3, 7% after that (yearly, compound). The final sum is:

6. 3000 denars, 5 years, 4% (ps)d (per half-year). What is the sum?

7. 100000 denars, 3% (pa)d, 20 years, yearly. What is the sum?

8. 10000 denars at 10% a year for 5 years, compound. What is the value?

9. 15000 euros at 10% a year, compound. What is the capital after 3 years (euros)?

10. 1000000 denars, 3 years, 4% a year. What is the difference between compound and simple interest (denars)?