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Oak MathsTest · Maths

Changing compound interest rates

The starter and exit quiz of the lesson “Changing compound interest rates”, from the unit “Percentages” (Year 10 Maths) by Oak National Academy.

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Oak National Academy

12 questions

  1. What is the correct multiplier for compound interest over 5 years at 1.6%?
  2. If I decrease £90 to £18, what is the percentage loss?
  3. What is the correct multiplier for compound interest over 9 years at 2.5%?
  4. Increase 500 by 4.9%.
  5. The value of a good investment gains value by 6% compound interest each year. If the investment was worth £30 000 when purchased how much is it worth after 3 years?
  6. If I increase £90 to £135, what is the percentage gain?
  7. If I put £9000 in an account and it earns 5% compound interest for the first two years, then 4% for the third year, how much money will be in the account at the end of that year?
  8. If I put £50 000 in an account and it earns 5% compound interest for the first two years, then 4% for the third year, how much money will be in the account at the end of that year?
  9. If I put £13 000 in an account and it earns 7% compound interest for the first year, then 2% for the second year, how much money will be in the account at the end of that year?
  10. If I put £2500 in an account and it earns 4% compound interest for the first two years, then 7% for the next five years, how much money will be in the account at the end of that period?
  11. If I put £2500 in an account and it earns 7% compound interest for the first year, then 2% for the second year, how much money will be in the account at the end of that year?
  12. If I put £4800 in an account and it earns 5% compound interest for the first two years, then 3% for the third year, how much money will be in the account at the end of that year?

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Changing compound interest rates · Examplary