Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 920 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.₹6000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹7920 (b) ₹8400 (c) ₹6480 (d) ₹1920
2. 2.What is the simple interest on ₹2000 at 11% per year for 3 years? (a) ₹660 (b) ₹220 (c) ₹880 (d) ₹2660
3. 3.What is the simple interest on ₹7500 at 9% per year for 4 years? (a) ₹3375 (b) ₹675 (c) ₹2700 (d) ₹10200
4. 4.What is the simple interest on ₹4000 at 5% per year for 2 years? (a) ₹400 (b) ₹4400 (c) ₹600 (d) ₹200
5. 5.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 3% (b) 9% (c) 4% (d) 2%
6. 6.The simple interest on ₹4000 for 3 years is ₹1440. What is the rate per year? (a) 36% (b) 11% (c) 13% (d) 12%
7. 7.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5715 (b) ₹5310 (c) ₹4905 (d) ₹810
8. 8.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹2520 (b) ₹840 (c) ₹1680 (d) ₹8680
9. 9.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 18%
10. 10.The simple interest on ₹3500 for 2 years is ₹280. What is the rate per year? (a) 4% (b) 8% (c) 3% (d) 5%
11. 11.The simple interest on ₹6000 for 2 years is ₹960. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 16%
12. 12.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹1800 (b) ₹7500 (c) ₹300 (d) ₹1500
13. 13.The simple interest on ₹8000 for 2 years is ₹1920. What is the rate per year? (a) 11% (b) 24% (c) 13% (d) 12%
14. 14.In how many years will ₹9500 earn ₹1710 simple interest at 9% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
15. 15.₹8000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹8400 (c) ₹8800 (d) ₹9200
16. 16.What is the simple interest on ₹6500 at 5% per year for 3 years? (a) ₹1300 (b) ₹975 (c) ₹325 (d) ₹7475
17. 17.The simple interest on ₹10000 for 5 years is ₹1500. What is the rate per year? (a) 2% (b) 3% (c) 15% (d) 4%
18. 18.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1350 (b) ₹1070 (c) ₹280 (d) ₹1280
19. 19.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3175 (b) ₹675 (c) ₹3400 (d) ₹2725
20. 20.In how many years will ₹8000 earn ₹1600 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
21. 21.The simple interest on ₹7500 for 2 years is ₹600. What is the rate per year? (a) 5% (b) 4% (c) 8% (d) 3%
22. 22.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹540 (b) ₹360 (c) ₹4860 (d) ₹180
23. 23.In how many years will ₹9500 earn ₹380 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
24. 24.₹8000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹11200 (b) ₹8800 (c) ₹2400 (d) ₹10400
25. 25.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹120 (b) ₹240 (c) ₹360 (d) ₹6240
26. 26.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹8175 (c) ₹7725 (d) ₹7950
27. 27.The simple interest on ₹6000 for 3 years is ₹1620. What is the rate per year? (a) 8% (b) 27% (c) 9% (d) 10%
28. 28.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
29. 29.The simple interest on ₹6000 for 4 years is ₹2880. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 48%
30. 30.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹550 (b) ₹825 (c) ₹3050 (d) ₹275
31. 31.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹4635 (b) ₹405 (c) ₹5040 (d) ₹4905
32. 32.The simple interest on ₹4000 for 2 years is ₹240. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 6%
33. 33.In how many years will ₹9500 earn ₹4180 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
34. 34.What is the simple interest on ₹3500 at 9% per year for 5 years? (a) ₹5075 (b) ₹1890 (c) ₹1575 (d) ₹315
35. 35.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹2725 (b) ₹2950 (c) ₹450 (d) ₹3175
36. 36.The simple interest on ₹7500 for 5 years is ₹4125. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 55%
37. 37.What is the simple interest on ₹1500 at 6% per year for 2 years? (a) ₹270 (b) ₹90 (c) ₹180 (d) ₹1680
38. 38.₹9000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1890 (b) ₹10890 (c) ₹11520 (d) ₹9630
39. 39.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹960 (b) ₹1200 (c) ₹2960 (d) ₹240
40. 40.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 36% (b) 8% (c) 9% (d) 10%

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