Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 241 · 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.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
2. 2.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹3120 (b) ₹8840 (c) ₹780 (d) ₹2340
3. 3.What is the simple interest on ₹9500 at 12% per year for 2 years? (a) ₹2280 (b) ₹3420 (c) ₹11780 (d) ₹1140
4. 4.The simple interest on ₹9000 for 2 years is ₹2160. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
5. 5.The simple interest on ₹1500 for 5 years is ₹525. What is the rate per year? (a) 35% (b) 7% (c) 8% (d) 6%
6. 6.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 9% (b) 27% (c) 8% (d) 10%
7. 7.₹1500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2160 (b) ₹1665 (c) ₹2325 (d) ₹660
8. 8.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹11210 (b) ₹1710 (c) ₹2280 (d) ₹570
9. 9.In how many years will ₹4000 earn ₹1760 simple interest at 11% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
10. 10.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹120 (b) ₹2120 (c) ₹2160 (d) ₹2040
11. 11.The simple interest on ₹2500 for 2 years is ₹150. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 4%
12. 12.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4635 (b) ₹4770 (c) ₹270 (d) ₹4905
13. 13.The simple interest on ₹10000 for 5 years is ₹3500. What is the rate per year? (a) 8% (b) 35% (c) 6% (d) 7%
14. 14.The simple interest on ₹9000 for 5 years is ₹900. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 10%
15. 15.₹5000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1750 (b) ₹5350 (c) ₹6750 (d) ₹7100
16. 16.The simple interest on ₹1000 for 3 years is ₹360. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 36%
17. 17.What is the simple interest on ₹7500 at 7% per year for 2 years? (a) ₹1575 (b) ₹8550 (c) ₹525 (d) ₹1050
18. 18.The simple interest on ₹7500 for 4 years is ₹2100. What is the rate per year? (a) 28% (b) 7% (c) 6% (d) 8%
19. 19.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹120 (b) ₹3060 (c) ₹3120 (d) ₹3180
20. 20.The simple interest on ₹6000 for 4 years is ₹480. What is the rate per year? (a) 8% (b) 1% (c) 2% (d) 3%
21. 21.₹1000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1150 (b) ₹1050 (c) ₹1100 (d) ₹100
22. 22.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹1620 (b) ₹150 (c) ₹120 (d) ₹30
23. 23.The simple interest on ₹8500 for 2 years is ₹1020. What is the rate per year? (a) 6% (b) 12% (c) 7% (d) 5%
24. 24.In how many years will ₹5500 earn ₹3300 simple interest at 12% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
25. 25.The simple interest on ₹3500 for 5 years is ₹1750. What is the rate per year? (a) 50% (b) 10% (c) 9% (d) 11%
26. 26.The simple interest on ₹9500 for 4 years is ₹4560. What is the rate per year? (a) 13% (b) 12% (c) 48% (d) 11%
27. 27.The simple interest on ₹9500 for 2 years is ₹1710. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 18%
28. 28.What is the simple interest on ₹5500 at 8% per year for 2 years? (a) ₹1320 (b) ₹440 (c) ₹6380 (d) ₹880
29. 29.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1920 (b) ₹8640 (c) ₹9920 (d) ₹10560
30. 30.What is the simple interest on ₹7000 at 8% per year for 3 years? (a) ₹8680 (b) ₹1680 (c) ₹560 (d) ₹2240
31. 31.The simple interest on ₹3000 for 5 years is ₹600. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
32. 32.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
33. 33.The simple interest on ₹8000 for 5 years is ₹1200. What is the rate per year? (a) 15% (b) 2% (c) 4% (d) 3%
34. 34.The simple interest on ₹3500 for 3 years is ₹1050. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 30%
35. 35.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹2320 (b) ₹160 (c) ₹320 (d) ₹480
36. 36.₹9500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9880 (b) ₹11020 (c) ₹1520 (d) ₹11400
37. 37.What is the simple interest on ₹3000 at 12% per year for 5 years? (a) ₹360 (b) ₹1800 (c) ₹2160 (d) ₹4800
38. 38.What is the simple interest on ₹3500 at 10% per year for 5 years? (a) ₹2100 (b) ₹5250 (c) ₹350 (d) ₹1750
39. 39.In how many years will ₹7500 earn ₹3600 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
40. 40.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹780 (b) ₹7280 (c) ₹7670 (d) ₹6890

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