Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 916 · 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.₹1500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1575 (b) ₹225 (c) ₹1800 (d) ₹1725
2. 2.In how many years will ₹7000 earn ₹1680 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
3. 3.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹9360 (c) ₹9180 (d) ₹9540
4. 4.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹480 (b) ₹1920 (c) ₹7440 (d) ₹1440
5. 5.The simple interest on ₹7500 for 3 years is ₹900. What is the rate per year? (a) 5% (b) 3% (c) 12% (d) 4%
6. 6.₹3000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹4200 (b) ₹3240 (c) ₹960 (d) ₹3960
7. 7.What is the simple interest on ₹7500 at 5% per year for 4 years? (a) ₹1500 (b) ₹9000 (c) ₹375 (d) ₹1875
8. 8.₹8500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹11560 (b) ₹9265 (c) ₹10795 (d) ₹2295
9. 9.The simple interest on ₹3500 for 2 years is ₹420. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
10. 10.The simple interest on ₹9500 for 2 years is ₹2280. What is the rate per year? (a) 11% (b) 13% (c) 24% (d) 12%
11. 11.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 24% (b) 8% (c) 7% (d) 9%
12. 12.The simple interest on ₹9500 for 4 years is ₹1520. What is the rate per year? (a) 4% (b) 16% (c) 3% (d) 5%
13. 13.In how many years will ₹4000 earn ₹1200 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
14. 14.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
15. 15.₹9500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹12825 (b) ₹13490 (c) ₹10165 (d) ₹3325
16. 16.₹10000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1200 (b) ₹10300 (c) ₹11200 (d) ₹11500
17. 17.₹6500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7150 (b) ₹8450 (c) ₹1300 (d) ₹7800
18. 18.The simple interest on ₹10000 for 4 years is ₹3200. What is the rate per year? (a) 32% (b) 9% (c) 8% (d) 7%
19. 19.The simple interest on ₹8500 for 2 years is ₹1870. What is the rate per year? (a) 12% (b) 10% (c) 22% (d) 11%
20. 20.The simple interest on ₹6500 for 3 years is ₹975. What is the rate per year? (a) 6% (b) 15% (c) 4% (d) 5%
21. 21.₹4000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹5440 (b) ₹4360 (c) ₹1440 (d) ₹5800
22. 22.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹6490 (b) ₹6160 (c) ₹5830 (d) ₹660
23. 23.The simple interest on ₹7000 for 4 years is ₹3080. What is the rate per year? (a) 10% (b) 11% (c) 44% (d) 12%
24. 24.What is the simple interest on ₹5500 at 12% per year for 2 years? (a) ₹1980 (b) ₹660 (c) ₹1320 (d) ₹6820
25. 25.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹1155 (c) ₹3885 (d) ₹4655
26. 26.In how many years will ₹4500 earn ₹180 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
27. 27.What is the simple interest on ₹3000 at 7% per year for 5 years? (a) ₹1050 (b) ₹1260 (c) ₹4050 (d) ₹210
28. 28.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2800 (b) ₹2600 (c) ₹2700 (d) ₹200
29. 29.What is the simple interest on ₹8000 at 4% per year for 5 years? (a) ₹9600 (b) ₹320 (c) ₹1600 (d) ₹1920
30. 30.The simple interest on ₹5000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 12%
31. 31.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
32. 32.₹5000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5200 (b) ₹5800 (c) ₹5600 (d) ₹600
33. 33.In how many years will ₹7500 earn ₹600 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
34. 34.What is the simple interest on ₹7000 at 2% per year for 2 years? (a) ₹140 (b) ₹7280 (c) ₹420 (d) ₹280
35. 35.₹4000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4120 (b) ₹4360 (c) ₹4240 (d) ₹240
36. 36.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
37. 37.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
38. 38.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
39. 39.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹2200 (b) ₹300 (c) ₹100 (d) ₹200
40. 40.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years

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