∑ DANEMATHICS
FREE CAPS MATHS RESOURCES
Grade 10 · Finance and Growth
Simple & Compound Interest: The Grade 10 Question Types
WORKSHEET
Name:
Class:
Date:
Mark
/ 27
Answer all questions. Show all your working — marks are awarded for method as well as the final answer.
- 1R1 000 at 10% simple interest for 2 years — total? (simple)(2)
- 2R3 000 at 5% simple interest for 4 years — total? (simple)(2)
- 3R1 000 at 10% compound for 2 years — total? (compound)(3)
- 4R5 000 at 6% compound for 3 years (to cents). (compound)(3)
- 5Interest on R2 000 at 8% compound over 2 years. (interest)(3)
- 6What must you invest at 8% compound to get R5 000 in 3 years? (present value)(3)
- 7R500 grows to R650 in 3 years (simple). Find the rate. (rate)(3)
- 8A loaf of bread costs R22 today. Inflation has run at 6% p.a. for the past 4 years. What did it cost 4 years ago? (inflation, backwards)(3)
- 9Which is more after 5 years on R1 000 at 10% — simple or compound? (compare)(3)
- 10A R60 item rises with 8% inflation for 1 year. New price? (inflation)(2)
TOTAL: 27 marks